Home / 38,370.32-57,484.16-20,854.88

Finding the Fourth Proportional to 38,370.32, 57,484.16 and 20,854.88

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Solution

The fourth proportional to 38,370.32, 57,484.16 and 20,854.88 is: 31,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,370.32 : 57,484.16 = 20,854.88 : x
  2. Step 2: Convert to fraction form
    38,370.32/57,484.16 = 20,854.88/x
  3. Step 3: Cross multiply
    38,370.32x = 57,484.16 × 20,854.88
  4. Step 4: Simplify right side
    38,370.32x = 1,198,825,258.70
  5. Step 5: Solve for x
    x = 1,198,825,258.70/38,370.32
  6. Step 6: Final answer
    x = 31,243.56

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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.