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Finding the Third Proportional to 18,042 and 38,958

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Solution

The third proportional to 18,042 and 38,958 is: 84,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042 : 38,958 = 38,958 : x
  2. Step 2: Convert to fraction form
    18,042/38,958 = 38,958/x
  3. Step 3: Cross multiply
    18,042x = 38,958 × 38,958
  4. Step 4: Simplify right side
    18,042x = 1,517,725,764
  5. Step 5: Solve for x
    x = 1,517,725,764/18,042
  6. Step 6: Final answer
    x = 84,121.81

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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.