Home / 22,750.53-31,398.03-12,680.61

Finding the Fourth Proportional to 22,750.53, 31,398.03 and 12,680.61

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Solution

The fourth proportional to 22,750.53, 31,398.03 and 12,680.61 is: 17,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.53 : 31,398.03 = 12,680.61 : x
  2. Step 2: Convert to fraction form
    22,750.53/31,398.03 = 12,680.61/x
  3. Step 3: Cross multiply
    22,750.53x = 31,398.03 × 12,680.61
  4. Step 4: Simplify right side
    22,750.53x = 398,146,173.20
  5. Step 5: Solve for x
    x = 398,146,173.20/22,750.53
  6. Step 6: Final answer
    x = 17,500.52

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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.