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Finding the Third Proportional to 18,554 and 39,172

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Solution

The third proportional to 18,554 and 39,172 is: 82,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554 : 39,172 = 39,172 : x
  2. Step 2: Convert to fraction form
    18,554/39,172 = 39,172/x
  3. Step 3: Cross multiply
    18,554x = 39,172 × 39,172
  4. Step 4: Simplify right side
    18,554x = 1,534,445,584
  5. Step 5: Solve for x
    x = 1,534,445,584/18,554
  6. Step 6: Final answer
    x = 82,701.61

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.