Home / 31,443.20-43,394.79-18,016.23

Finding the Fourth Proportional to 31,443.20, 43,394.79 and 18,016.23

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Solution

The fourth proportional to 31,443.20, 43,394.79 and 18,016.23 is: 24,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,443.20 : 43,394.79 = 18,016.23 : x
  2. Step 2: Convert to fraction form
    31,443.20/43,394.79 = 18,016.23/x
  3. Step 3: Cross multiply
    31,443.20x = 43,394.79 × 18,016.23
  4. Step 4: Simplify right side
    31,443.20x = 781,810,517.44
  5. Step 5: Solve for x
    x = 781,810,517.44/31,443.20
  6. Step 6: Final answer
    x = 24,864.22

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Double scale
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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.