Home / 38,515.76-57,734.00-18,769.88

Finding the Fourth Proportional to 38,515.76, 57,734.00 and 18,769.88

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Solution

The fourth proportional to 38,515.76, 57,734.00 and 18,769.88 is: 28,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.76 : 57,734.00 = 18,769.88 : x
  2. Step 2: Convert to fraction form
    38,515.76/57,734.00 = 18,769.88/x
  3. Step 3: Cross multiply
    38,515.76x = 57,734.00 × 18,769.88
  4. Step 4: Simplify right side
    38,515.76x = 1,083,660,372.79
  5. Step 5: Solve for x
    x = 1,083,660,372.79/38,515.76
  6. Step 6: Final answer
    x = 28,135.51

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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.