Home / 14,385-21,489

Finding the Third Proportional to 14,385 and 21,489

Calculator

Solution

The third proportional to 14,385 and 21,489 is: 32,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385 : 21,489 = 21,489 : x
  2. Step 2: Convert to fraction form
    14,385/21,489 = 21,489/x
  3. Step 3: Cross multiply
    14,385x = 21,489 × 21,489
  4. Step 4: Simplify right side
    14,385x = 461,777,121
  5. Step 5: Solve for x
    x = 461,777,121/14,385
  6. Step 6: Final answer
    x = 32,101.29

Related Problems

Find third proportional to 7,192.50 and 10,744.50
Half scale
Find third proportional to 28,770 and 42,978
Double scale
Find third proportional to 14,387 and 21,492
Similar ratio
Find third proportional to 21,577.50 and 32,233.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.