Home / 31,687.88-43,729.62-17,540.96

Finding the Fourth Proportional to 31,687.88, 43,729.62 and 17,540.96

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Solution

The fourth proportional to 31,687.88, 43,729.62 and 17,540.96 is: 24,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.88 : 43,729.62 = 17,540.96 : x
  2. Step 2: Convert to fraction form
    31,687.88/43,729.62 = 17,540.96/x
  3. Step 3: Cross multiply
    31,687.88x = 43,729.62 × 17,540.96
  4. Step 4: Simplify right side
    31,687.88x = 767,059,515.24
  5. Step 5: Solve for x
    x = 767,059,515.24/31,687.88
  6. Step 6: Final answer
    x = 24,206.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.