Home / 15,904-20,712

Finding the Third Proportional to 15,904 and 20,712

Calculator

Solution

The third proportional to 15,904 and 20,712 is: 26,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904 : 20,712 = 20,712 : x
  2. Step 2: Convert to fraction form
    15,904/20,712 = 20,712/x
  3. Step 3: Cross multiply
    15,904x = 20,712 × 20,712
  4. Step 4: Simplify right side
    15,904x = 428,986,944
  5. Step 5: Solve for x
    x = 428,986,944/15,904
  6. Step 6: Final answer
    x = 26,973.53

Related Problems

Find third proportional to 7,952 and 10,356
Half scale
Find third proportional to 31,808 and 41,424
Double scale
Find third proportional to 15,906 and 20,715
Similar ratio
Find third proportional to 23,856 and 31,068
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.