Home / 22,815.66-34,200.26-15,420.87

Finding the Fourth Proportional to 22,815.66, 34,200.26 and 15,420.87

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Solution

The fourth proportional to 22,815.66, 34,200.26 and 15,420.87 is: 23,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,815.66 : 34,200.26 = 15,420.87 : x
  2. Step 2: Convert to fraction form
    22,815.66/34,200.26 = 15,420.87/x
  3. Step 3: Cross multiply
    22,815.66x = 34,200.26 × 15,420.87
  4. Step 4: Simplify right side
    22,815.66x = 527,397,763.43
  5. Step 5: Solve for x
    x = 527,397,763.43/22,815.66
  6. Step 6: Final answer
    x = 23,115.60

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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.