Home / 31,449.17-43,399.77-18,873.92

Finding the Fourth Proportional to 31,449.17, 43,399.77 and 18,873.92

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Solution

The fourth proportional to 31,449.17, 43,399.77 and 18,873.92 is: 26,045.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.17 : 43,399.77 = 18,873.92 : x
  2. Step 2: Convert to fraction form
    31,449.17/43,399.77 = 18,873.92/x
  3. Step 3: Cross multiply
    31,449.17x = 43,399.77 × 18,873.92
  4. Step 4: Simplify right side
    31,449.17x = 819,123,787.00
  5. Step 5: Solve for x
    x = 819,123,787.00/31,449.17
  6. Step 6: Final answer
    x = 26,045.96

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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.