Home / 36,613.80-54,942.30-13,237.20

Finding the Fourth Proportional to 36,613.80, 54,942.30 and 13,237.20

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Solution

The fourth proportional to 36,613.80, 54,942.30 and 13,237.20 is: 19,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,613.80 : 54,942.30 = 13,237.20 : x
  2. Step 2: Convert to fraction form
    36,613.80/54,942.30 = 13,237.20/x
  3. Step 3: Cross multiply
    36,613.80x = 54,942.30 × 13,237.20
  4. Step 4: Simplify right side
    36,613.80x = 727,282,213.56
  5. Step 5: Solve for x
    x = 727,282,213.56/36,613.80
  6. Step 6: Final answer
    x = 19,863.61

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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.