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Finding the Fourth Proportional to 18,755.27, 28,132.15 and 4,715.41

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Solution

The fourth proportional to 18,755.27, 28,132.15 and 4,715.41 is: 7,072.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.27 : 28,132.15 = 4,715.41 : x
  2. Step 2: Convert to fraction form
    18,755.27/28,132.15 = 4,715.41/x
  3. Step 3: Cross multiply
    18,755.27x = 28,132.15 × 4,715.41
  4. Step 4: Simplify right side
    18,755.27x = 132,654,621.43
  5. Step 5: Solve for x
    x = 132,654,621.43/18,755.27
  6. Step 6: Final answer
    x = 7,072.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.