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Finding the Third Proportional to 19,147 and 28,605

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Solution

The third proportional to 19,147 and 28,605 is: 42,734.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147 : 28,605 = 28,605 : x
  2. Step 2: Convert to fraction form
    19,147/28,605 = 28,605/x
  3. Step 3: Cross multiply
    19,147x = 28,605 × 28,605
  4. Step 4: Simplify right side
    19,147x = 818,246,025
  5. Step 5: Solve for x
    x = 818,246,025/19,147
  6. Step 6: Final answer
    x = 42,734.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.