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Finding the Third Proportional to 18,716 and 28,761

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Solution

The third proportional to 18,716 and 28,761 is: 44,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716 : 28,761 = 28,761 : x
  2. Step 2: Convert to fraction form
    18,716/28,761 = 28,761/x
  3. Step 3: Cross multiply
    18,716x = 28,761 × 28,761
  4. Step 4: Simplify right side
    18,716x = 827,195,121
  5. Step 5: Solve for x
    x = 827,195,121/18,716
  6. Step 6: Final answer
    x = 44,197.22

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.