Home / 36,531.72-54,784.62-13,151.88

Finding the Fourth Proportional to 36,531.72, 54,784.62 and 13,151.88

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Solution

The fourth proportional to 36,531.72, 54,784.62 and 13,151.88 is: 19,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,531.72 : 54,784.62 = 13,151.88 : x
  2. Step 2: Convert to fraction form
    36,531.72/54,784.62 = 13,151.88/x
  3. Step 3: Cross multiply
    36,531.72x = 54,784.62 × 13,151.88
  4. Step 4: Simplify right side
    36,531.72x = 720,520,748.09
  5. Step 5: Solve for x
    x = 720,520,748.09/36,531.72
  6. Step 6: Final answer
    x = 19,723.15

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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.