Home / 36,540.80-54,778.24-13,150.72

Finding the Fourth Proportional to 36,540.80, 54,778.24 and 13,150.72

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Solution

The fourth proportional to 36,540.80, 54,778.24 and 13,150.72 is: 19,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,540.80 : 54,778.24 = 13,150.72 : x
  2. Step 2: Convert to fraction form
    36,540.80/54,778.24 = 13,150.72/x
  3. Step 3: Cross multiply
    36,540.80x = 54,778.24 × 13,150.72
  4. Step 4: Simplify right side
    36,540.80x = 720,373,296.33
  5. Step 5: Solve for x
    x = 720,373,296.33/36,540.80
  6. Step 6: Final answer
    x = 19,714.22

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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.