Home / 33,180.64-49,765.20-12,399.84

Finding the Fourth Proportional to 33,180.64, 49,765.20 and 12,399.84

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Solution

The fourth proportional to 33,180.64, 49,765.20 and 12,399.84 is: 18,597.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,180.64 : 49,765.20 = 12,399.84 : x
  2. Step 2: Convert to fraction form
    33,180.64/49,765.20 = 12,399.84/x
  3. Step 3: Cross multiply
    33,180.64x = 49,765.20 × 12,399.84
  4. Step 4: Simplify right side
    33,180.64x = 617,080,517.57
  5. Step 5: Solve for x
    x = 617,080,517.57/33,180.64
  6. Step 6: Final answer
    x = 18,597.61

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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.