Home / 31,729.87-43,798.19-18,306.47

Finding the Fourth Proportional to 31,729.87, 43,798.19 and 18,306.47

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Solution

The fourth proportional to 31,729.87, 43,798.19 and 18,306.47 is: 25,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.87 : 43,798.19 = 18,306.47 : x
  2. Step 2: Convert to fraction form
    31,729.87/43,798.19 = 18,306.47/x
  3. Step 3: Cross multiply
    31,729.87x = 43,798.19 × 18,306.47
  4. Step 4: Simplify right side
    31,729.87x = 801,790,251.29
  5. Step 5: Solve for x
    x = 801,790,251.29/31,729.87
  6. Step 6: Final answer
    x = 25,269.26

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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.