Home / 31,721.08-43,775-17,573.92

Finding the Fourth Proportional to 31,721.08, 43,775 and 17,573.92

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Solution

The fourth proportional to 31,721.08, 43,775 and 17,573.92 is: 24,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.08 : 43,775 = 17,573.92 : x
  2. Step 2: Convert to fraction form
    31,721.08/43,775 = 17,573.92/x
  3. Step 3: Cross multiply
    31,721.08x = 43,775 × 17,573.92
  4. Step 4: Simplify right side
    31,721.08x = 769,298,348.00
  5. Step 5: Solve for x
    x = 769,298,348.00/31,721.08
  6. Step 6: Final answer
    x = 24,251.96

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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.