Home / 31,156.44-42,999.66-17,730.96

Finding the Fourth Proportional to 31,156.44, 42,999.66 and 17,730.96

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Solution

The fourth proportional to 31,156.44, 42,999.66 and 17,730.96 is: 24,470.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,156.44 : 42,999.66 = 17,730.96 : x
  2. Step 2: Convert to fraction form
    31,156.44/42,999.66 = 17,730.96/x
  3. Step 3: Cross multiply
    31,156.44x = 42,999.66 × 17,730.96
  4. Step 4: Simplify right side
    31,156.44x = 762,425,251.47
  5. Step 5: Solve for x
    x = 762,425,251.47/31,156.44
  6. Step 6: Final answer
    x = 24,470.87

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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.