Home / 36,286.38-54,412.56-12,589.02

Finding the Fourth Proportional to 36,286.38, 54,412.56 and 12,589.02

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Solution

The fourth proportional to 36,286.38, 54,412.56 and 12,589.02 is: 18,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,286.38 : 54,412.56 = 12,589.02 : x
  2. Step 2: Convert to fraction form
    36,286.38/54,412.56 = 12,589.02/x
  3. Step 3: Cross multiply
    36,286.38x = 54,412.56 × 12,589.02
  4. Step 4: Simplify right side
    36,286.38x = 685,000,806.09
  5. Step 5: Solve for x
    x = 685,000,806.09/36,286.38
  6. Step 6: Final answer
    x = 18,877.63

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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.