Home / 31,778.28-43,853.76-17,631.12

Finding the Fourth Proportional to 31,778.28, 43,853.76 and 17,631.12

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Solution

The fourth proportional to 31,778.28, 43,853.76 and 17,631.12 is: 24,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.28 : 43,853.76 = 17,631.12 : x
  2. Step 2: Convert to fraction form
    31,778.28/43,853.76 = 17,631.12/x
  3. Step 3: Cross multiply
    31,778.28x = 43,853.76 × 17,631.12
  4. Step 4: Simplify right side
    31,778.28x = 773,190,905.01
  5. Step 5: Solve for x
    x = 773,190,905.01/31,778.28
  6. Step 6: Final answer
    x = 24,330.80

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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.