Home / 28,469.87-42,730.71-15,154.04

Finding the Fourth Proportional to 28,469.87, 42,730.71 and 15,154.04

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Solution

The fourth proportional to 28,469.87, 42,730.71 and 15,154.04 is: 22,744.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.87 : 42,730.71 = 15,154.04 : x
  2. Step 2: Convert to fraction form
    28,469.87/42,730.71 = 15,154.04/x
  3. Step 3: Cross multiply
    28,469.87x = 42,730.71 × 15,154.04
  4. Step 4: Simplify right side
    28,469.87x = 647,543,096.47
  5. Step 5: Solve for x
    x = 647,543,096.47/28,469.87
  6. Step 6: Final answer
    x = 22,744.86

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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.