Home / 31,481.60-47,222.33-11,761.70

Finding the Fourth Proportional to 31,481.60, 47,222.33 and 11,761.70

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Solution

The fourth proportional to 31,481.60, 47,222.33 and 11,761.70 is: 17,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.60 : 47,222.33 = 11,761.70 : x
  2. Step 2: Convert to fraction form
    31,481.60/47,222.33 = 11,761.70/x
  3. Step 3: Cross multiply
    31,481.60x = 47,222.33 × 11,761.70
  4. Step 4: Simplify right side
    31,481.60x = 555,414,583.84
  5. Step 5: Solve for x
    x = 555,414,583.84/31,481.60
  6. Step 6: Final answer
    x = 17,642.52

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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.