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Finding the Third Proportional to 18,081 and 38,438

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Solution

The third proportional to 18,081 and 38,438 is: 81,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081 : 38,438 = 38,438 : x
  2. Step 2: Convert to fraction form
    18,081/38,438 = 38,438/x
  3. Step 3: Cross multiply
    18,081x = 38,438 × 38,438
  4. Step 4: Simplify right side
    18,081x = 1,477,479,844
  5. Step 5: Solve for x
    x = 1,477,479,844/18,081
  6. Step 6: Final answer
    x = 81,714.50

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.