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Finding the Fourth Proportional to 38,324.88, 57,552.72 and 20,828.88

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Solution

The fourth proportional to 38,324.88, 57,552.72 and 20,828.88 is: 31,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,324.88 : 57,552.72 = 20,828.88 : x
  2. Step 2: Convert to fraction form
    38,324.88/57,552.72 = 20,828.88/x
  3. Step 3: Cross multiply
    38,324.88x = 57,552.72 × 20,828.88
  4. Step 4: Simplify right side
    38,324.88x = 1,198,758,698.55
  5. Step 5: Solve for x
    x = 1,198,758,698.55/38,324.88
  6. Step 6: Final answer
    x = 31,278.86

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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.