Home / 31,481.06-47,217.51-9,296.78

Finding the Fourth Proportional to 31,481.06, 47,217.51 and 9,296.78

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Solution

The fourth proportional to 31,481.06, 47,217.51 and 9,296.78 is: 13,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.06 : 47,217.51 = 9,296.78 : x
  2. Step 2: Convert to fraction form
    31,481.06/47,217.51 = 9,296.78/x
  3. Step 3: Cross multiply
    31,481.06x = 47,217.51 × 9,296.78
  4. Step 4: Simplify right side
    31,481.06x = 438,970,566.53
  5. Step 5: Solve for x
    x = 438,970,566.53/31,481.06
  6. Step 6: Final answer
    x = 13,943.96

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1.5x scale

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.