Home / 31,684.08-47,517.96-11,956.80

Finding the Fourth Proportional to 31,684.08, 47,517.96 and 11,956.80

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Solution

The fourth proportional to 31,684.08, 47,517.96 and 11,956.80 is: 17,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.08 : 47,517.96 = 11,956.80 : x
  2. Step 2: Convert to fraction form
    31,684.08/47,517.96 = 11,956.80/x
  3. Step 3: Cross multiply
    31,684.08x = 47,517.96 × 11,956.80
  4. Step 4: Simplify right side
    31,684.08x = 568,162,744.13
  5. Step 5: Solve for x
    x = 568,162,744.13/31,684.08
  6. Step 6: Final answer
    x = 17,932.12

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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.