Home / 36,279.72-54,398.92-18,499.40

Finding the Fourth Proportional to 36,279.72, 54,398.92 and 18,499.40

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Solution

The fourth proportional to 36,279.72, 54,398.92 and 18,499.40 is: 27,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,279.72 : 54,398.92 = 18,499.40 : x
  2. Step 2: Convert to fraction form
    36,279.72/54,398.92 = 18,499.40/x
  3. Step 3: Cross multiply
    36,279.72x = 54,398.92 × 18,499.40
  4. Step 4: Simplify right side
    36,279.72x = 1,006,347,380.65
  5. Step 5: Solve for x
    x = 1,006,347,380.65/36,279.72
  6. Step 6: Final answer
    x = 27,738.57

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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.