# Blog

## 4 Steps to Solve Any Related Rates Problem – Part 2

### As of September 2022, we're using our Forum for comments and discussion of this topic, and for any math questions. We'd love to see you there and help! Please tap to visit our Forum: community.matheno.com

Archive of comments from before we started our forum:
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Jake
3 years ago

Just saved my life for a calc midterm

Matheno
Editor
3 years ago

Thanks, Jake!! We’re happy to have helped, and hope your midterm goes well!

Meola
4 years ago

I’ve been trying to learn this for days now and I’ve finally got it! Thank you!!

Matheno
Editor
4 years ago

You’re very welcome, Meola. We’re happy to have helped! : )

Jason Kirsch
6 years ago

I have a similar problem, but I can’t seem to get the correct answer. My cone has a height of 8 inches and a diameter of 12inches. If the liquid pours out at 4 cubic inches a second, how fast is the level of the liquid dropping when the liquid is 3 inches deep?

Barrett
7 years ago

how are you eliminating r as a variable using r/h? where does that formula come from?
just trying to figure out how r and h are related in that step, as it is not listed where that part comes from.

Evangelista Metropolitansky
7 years ago

Cool, do you have a page for optimization problems as well? Thanks!

## Update September 2022

All of our content is now free, with the goal of supporting anyone who is working to learn Calculus well.