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Finding the Third Proportional to 18,387 and 26,892

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Solution

The third proportional to 18,387 and 26,892 is: 39,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387 : 26,892 = 26,892 : x
  2. Step 2: Convert to fraction form
    18,387/26,892 = 26,892/x
  3. Step 3: Cross multiply
    18,387x = 26,892 × 26,892
  4. Step 4: Simplify right side
    18,387x = 723,179,664
  5. Step 5: Solve for x
    x = 723,179,664/18,387
  6. Step 6: Final answer
    x = 39,331.03

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.