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Finding the Third Proportional to 18,342 and 39,599

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Solution

The third proportional to 18,342 and 39,599 is: 85,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342 : 39,599 = 39,599 : x
  2. Step 2: Convert to fraction form
    18,342/39,599 = 39,599/x
  3. Step 3: Cross multiply
    18,342x = 39,599 × 39,599
  4. Step 4: Simplify right side
    18,342x = 1,568,080,801
  5. Step 5: Solve for x
    x = 1,568,080,801/18,342
  6. Step 6: Final answer
    x = 85,491.27

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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.