Home / 36,141.21-54,201.40-12,447.79

Finding the Fourth Proportional to 36,141.21, 54,201.40 and 12,447.79

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Solution

The fourth proportional to 36,141.21, 54,201.40 and 12,447.79 is: 18,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,141.21 : 54,201.40 = 12,447.79 : x
  2. Step 2: Convert to fraction form
    36,141.21/54,201.40 = 12,447.79/x
  3. Step 3: Cross multiply
    36,141.21x = 54,201.40 × 12,447.79
  4. Step 4: Simplify right side
    36,141.21x = 674,687,863.72
  5. Step 5: Solve for x
    x = 674,687,863.72/36,141.21
  6. Step 6: Final answer
    x = 18,668.11

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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.