Home / 38,451.38-57,671.31-31,919.54

Finding the Fourth Proportional to 38,451.38, 57,671.31 and 31,919.54

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Solution

The fourth proportional to 38,451.38, 57,671.31 and 31,919.54 is: 47,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,451.38 : 57,671.31 = 31,919.54 : x
  2. Step 2: Convert to fraction form
    38,451.38/57,671.31 = 31,919.54/x
  3. Step 3: Cross multiply
    38,451.38x = 57,671.31 × 31,919.54
  4. Step 4: Simplify right side
    38,451.38x = 1,840,841,686.40
  5. Step 5: Solve for x
    x = 1,840,841,686.40/38,451.38
  6. Step 6: Final answer
    x = 47,874.53

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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.