Home / 31,453.30-43,382.88-18,019.66

Finding the Fourth Proportional to 31,453.30, 43,382.88 and 18,019.66

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Solution

The fourth proportional to 31,453.30, 43,382.88 and 18,019.66 is: 24,854.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453.30 : 43,382.88 = 18,019.66 : x
  2. Step 2: Convert to fraction form
    31,453.30/43,382.88 = 18,019.66/x
  3. Step 3: Cross multiply
    31,453.30x = 43,382.88 × 18,019.66
  4. Step 4: Simplify right side
    31,453.30x = 781,744,747.42
  5. Step 5: Solve for x
    x = 781,744,747.42/31,453.30
  6. Step 6: Final answer
    x = 24,854.14

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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.