Home / 28,510.87-42,773.34-9,791.19

Finding the Fourth Proportional to 28,510.87, 42,773.34 and 9,791.19

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Solution

The fourth proportional to 28,510.87, 42,773.34 and 9,791.19 is: 14,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.87 : 42,773.34 = 9,791.19 : x
  2. Step 2: Convert to fraction form
    28,510.87/42,773.34 = 9,791.19/x
  3. Step 3: Cross multiply
    28,510.87x = 42,773.34 × 9,791.19
  4. Step 4: Simplify right side
    28,510.87x = 418,801,898.87
  5. Step 5: Solve for x
    x = 418,801,898.87/28,510.87
  6. Step 6: Final answer
    x = 14,689.20

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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.