Home / 22,621.96-31,217.72-12,550.38

Finding the Fourth Proportional to 22,621.96, 31,217.72 and 12,550.38

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Solution

The fourth proportional to 22,621.96, 31,217.72 and 12,550.38 is: 17,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.96 : 31,217.72 = 12,550.38 : x
  2. Step 2: Convert to fraction form
    22,621.96/31,217.72 = 12,550.38/x
  3. Step 3: Cross multiply
    22,621.96x = 31,217.72 × 12,550.38
  4. Step 4: Simplify right side
    22,621.96x = 391,794,248.73
  5. Step 5: Solve for x
    x = 391,794,248.73/22,621.96
  6. Step 6: Final answer
    x = 17,319.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.