Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


the mean proportional, or geometric mean, is always written in the following format: 

a/x = x/r, where a and r are two different numbers. 
so the mean proportion of 5 and 20 is 
5/x = x/20. just cross multiply and get 100 = x^2, which makes x = 10. 1
10 is the mean proportional.
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts