Home / 38,144.28-57,216.42-31,116.72

Finding the Fourth Proportional to 38,144.28, 57,216.42 and 31,116.72

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Solution

The fourth proportional to 38,144.28, 57,216.42 and 31,116.72 is: 46,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,144.28 : 57,216.42 = 31,116.72 : x
  2. Step 2: Convert to fraction form
    38,144.28/57,216.42 = 31,116.72/x
  3. Step 3: Cross multiply
    38,144.28x = 57,216.42 × 31,116.72
  4. Step 4: Simplify right side
    38,144.28x = 1,780,387,320.54
  5. Step 5: Solve for x
    x = 1,780,387,320.54/38,144.28
  6. Step 6: Final answer
    x = 46,675.08

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.