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Finding the Third Proportional to 18,381 and 27,499

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Solution

The third proportional to 18,381 and 27,499 is: 41,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381 : 27,499 = 27,499 : x
  2. Step 2: Convert to fraction form
    18,381/27,499 = 27,499/x
  3. Step 3: Cross multiply
    18,381x = 27,499 × 27,499
  4. Step 4: Simplify right side
    18,381x = 756,195,001
  5. Step 5: Solve for x
    x = 756,195,001/18,381
  6. Step 6: Final answer
    x = 41,140.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.