Home / 18,728-39,352

Finding the Third Proportional to 18,728 and 39,352

Calculator

Solution

The third proportional to 18,728 and 39,352 is: 82,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728 : 39,352 = 39,352 : x
  2. Step 2: Convert to fraction form
    18,728/39,352 = 39,352/x
  3. Step 3: Cross multiply
    18,728x = 39,352 × 39,352
  4. Step 4: Simplify right side
    18,728x = 1,548,579,904
  5. Step 5: Solve for x
    x = 1,548,579,904/18,728
  6. Step 6: Final answer
    x = 82,687.95

Related Problems

Find third proportional to 9,364 and 19,676
Half scale
Find third proportional to 37,456 and 78,704
Double scale
Find third proportional to 18,730 and 39,356
Similar ratio
Find third proportional to 28,092 and 59,028
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.