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Finding the Third Proportional to 18,508 and 39,932

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Solution

The third proportional to 18,508 and 39,932 is: 86,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508 : 39,932 = 39,932 : x
  2. Step 2: Convert to fraction form
    18,508/39,932 = 39,932/x
  3. Step 3: Cross multiply
    18,508x = 39,932 × 39,932
  4. Step 4: Simplify right side
    18,508x = 1,594,564,624
  5. Step 5: Solve for x
    x = 1,594,564,624/18,508
  6. Step 6: Final answer
    x = 86,155.43

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.