Home / 31,496.28-47,229.60-11,769.60

Finding the Fourth Proportional to 31,496.28, 47,229.60 and 11,769.60

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Solution

The fourth proportional to 31,496.28, 47,229.60 and 11,769.60 is: 17,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,496.28 : 47,229.60 = 11,769.60 : x
  2. Step 2: Convert to fraction form
    31,496.28/47,229.60 = 11,769.60/x
  3. Step 3: Cross multiply
    31,496.28x = 47,229.60 × 11,769.60
  4. Step 4: Simplify right side
    31,496.28x = 555,873,500.16
  5. Step 5: Solve for x
    x = 555,873,500.16/31,496.28
  6. Step 6: Final answer
    x = 17,648.86

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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.