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Finding the Third Proportional to 18,443 and 28,605

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Solution

The third proportional to 18,443 and 28,605 is: 44,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443 : 28,605 = 28,605 : x
  2. Step 2: Convert to fraction form
    18,443/28,605 = 28,605/x
  3. Step 3: Cross multiply
    18,443x = 28,605 × 28,605
  4. Step 4: Simplify right side
    18,443x = 818,246,025
  5. Step 5: Solve for x
    x = 818,246,025/18,443
  6. Step 6: Final answer
    x = 44,366.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.