Home / 38,039.28-57,067.56-20,508.72

Finding the Fourth Proportional to 38,039.28, 57,067.56 and 20,508.72

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Solution

The fourth proportional to 38,039.28, 57,067.56 and 20,508.72 is: 30,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,039.28 : 57,067.56 = 20,508.72 : x
  2. Step 2: Convert to fraction form
    38,039.28/57,067.56 = 20,508.72/x
  3. Step 3: Cross multiply
    38,039.28x = 57,067.56 × 20,508.72
  4. Step 4: Simplify right side
    38,039.28x = 1,170,382,609.12
  5. Step 5: Solve for x
    x = 1,170,382,609.12/38,039.28
  6. Step 6: Final answer
    x = 30,767.74

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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.