Home / 22,930.80-34,399.61-8,138.47

Finding the Fourth Proportional to 22,930.80, 34,399.61 and 8,138.47

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Solution

The fourth proportional to 22,930.80, 34,399.61 and 8,138.47 is: 12,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,930.80 : 34,399.61 = 8,138.47 : x
  2. Step 2: Convert to fraction form
    22,930.80/34,399.61 = 8,138.47/x
  3. Step 3: Cross multiply
    22,930.80x = 34,399.61 × 8,138.47
  4. Step 4: Simplify right side
    22,930.80x = 279,960,338.83
  5. Step 5: Solve for x
    x = 279,960,338.83/22,930.80
  6. Step 6: Final answer
    x = 12,208.92

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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.