Home / 20,808-38,664

Finding the Third Proportional to 20,808 and 38,664

Calculator

Solution

The third proportional to 20,808 and 38,664 is: 71,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808 : 38,664 = 38,664 : x
  2. Step 2: Convert to fraction form
    20,808/38,664 = 38,664/x
  3. Step 3: Cross multiply
    20,808x = 38,664 × 38,664
  4. Step 4: Simplify right side
    20,808x = 1,494,904,896
  5. Step 5: Solve for x
    x = 1,494,904,896/20,808
  6. Step 6: Final answer
    x = 71,842.80

Related Problems

Find third proportional to 10,404 and 19,332
Half scale
Find third proportional to 41,616 and 77,328
Double scale
Find third proportional to 20,810 and 38,668
Similar ratio
Find third proportional to 31,212 and 57,996
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.