Home / 38,515.74-57,754.17-18,764.70

Finding the Fourth Proportional to 38,515.74, 57,754.17 and 18,764.70

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Solution

The fourth proportional to 38,515.74, 57,754.17 and 18,764.70 is: 28,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.74 : 57,754.17 = 18,764.70 : x
  2. Step 2: Convert to fraction form
    38,515.74/57,754.17 = 18,764.70/x
  3. Step 3: Cross multiply
    38,515.74x = 57,754.17 × 18,764.70
  4. Step 4: Simplify right side
    38,515.74x = 1,083,739,673.80
  5. Step 5: Solve for x
    x = 1,083,739,673.80/38,515.74
  6. Step 6: Final answer
    x = 28,137.58

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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.