Home / 31,340.25-43,251.13-20,000.66

Finding the Fourth Proportional to 31,340.25, 43,251.13 and 20,000.66

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Solution

The fourth proportional to 31,340.25, 43,251.13 and 20,000.66 is: 27,601.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.25 : 43,251.13 = 20,000.66 : x
  2. Step 2: Convert to fraction form
    31,340.25/43,251.13 = 20,000.66/x
  3. Step 3: Cross multiply
    31,340.25x = 43,251.13 × 20,000.66
  4. Step 4: Simplify right side
    31,340.25x = 865,050,954.49
  5. Step 5: Solve for x
    x = 865,050,954.49/31,340.25
  6. Step 6: Final answer
    x = 27,601.92

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