Home / 31,481.97-47,231.07-11,760.69

Finding the Fourth Proportional to 31,481.97, 47,231.07 and 11,760.69

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Solution

The fourth proportional to 31,481.97, 47,231.07 and 11,760.69 is: 17,644.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.97 : 47,231.07 = 11,760.69 : x
  2. Step 2: Convert to fraction form
    31,481.97/47,231.07 = 11,760.69/x
  3. Step 3: Cross multiply
    31,481.97x = 47,231.07 × 11,760.69
  4. Step 4: Simplify right side
    31,481.97x = 555,469,972.64
  5. Step 5: Solve for x
    x = 555,469,972.64/31,481.97
  6. Step 6: Final answer
    x = 17,644.07

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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.