Home / 38,379.57-57,520.97-20,566.05

Finding the Fourth Proportional to 38,379.57, 57,520.97 and 20,566.05

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Solution

The fourth proportional to 38,379.57, 57,520.97 and 20,566.05 is: 30,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.57 : 57,520.97 = 20,566.05 : x
  2. Step 2: Convert to fraction form
    38,379.57/57,520.97 = 20,566.05/x
  3. Step 3: Cross multiply
    38,379.57x = 57,520.97 × 20,566.05
  4. Step 4: Simplify right side
    38,379.57x = 1,182,979,145.07
  5. Step 5: Solve for x
    x = 1,182,979,145.07/38,379.57
  6. Step 6: Final answer
    x = 30,823.15

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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.