Home / 36,134.16-54,205.76-12,435.60

Finding the Fourth Proportional to 36,134.16, 54,205.76 and 12,435.60

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Solution

The fourth proportional to 36,134.16, 54,205.76 and 12,435.60 is: 18,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,134.16 : 54,205.76 = 12,435.60 : x
  2. Step 2: Convert to fraction form
    36,134.16/54,205.76 = 12,435.60/x
  3. Step 3: Cross multiply
    36,134.16x = 54,205.76 × 12,435.60
  4. Step 4: Simplify right side
    36,134.16x = 674,081,149.06
  5. Step 5: Solve for x
    x = 674,081,149.06/36,134.16
  6. Step 6: Final answer
    x = 18,654.96

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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.