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Finding the Fourth Proportional to 22,552.85, 31,122.17 and 12,481.72

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Solution

The fourth proportional to 22,552.85, 31,122.17 and 12,481.72 is: 17,224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,552.85 : 31,122.17 = 12,481.72 : x
  2. Step 2: Convert to fraction form
    22,552.85/31,122.17 = 12,481.72/x
  3. Step 3: Cross multiply
    22,552.85x = 31,122.17 × 12,481.72
  4. Step 4: Simplify right side
    22,552.85x = 388,457,993.71
  5. Step 5: Solve for x
    x = 388,457,993.71/22,552.85
  6. Step 6: Final answer
    x = 17,224.34

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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.