Home / 10,425.29-15,640.38-3,029.90

Finding the Fourth Proportional to 10,425.29, 15,640.38 and 3,029.90

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Solution

The fourth proportional to 10,425.29, 15,640.38 and 3,029.90 is: 4,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,425.29 : 15,640.38 = 3,029.90 : x
  2. Step 2: Convert to fraction form
    10,425.29/15,640.38 = 3,029.90/x
  3. Step 3: Cross multiply
    10,425.29x = 15,640.38 × 3,029.90
  4. Step 4: Simplify right side
    10,425.29x = 47,388,709.16
  5. Step 5: Solve for x
    x = 47,388,709.16/10,425.29
  6. Step 6: Final answer
    x = 4,545.56

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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.