Home / 20,272.26-30,408.32-5,481.18

Finding the Fourth Proportional to 20,272.26, 30,408.32 and 5,481.18

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Solution

The fourth proportional to 20,272.26, 30,408.32 and 5,481.18 is: 8,221.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.26 : 30,408.32 = 5,481.18 : x
  2. Step 2: Convert to fraction form
    20,272.26/30,408.32 = 5,481.18/x
  3. Step 3: Cross multiply
    20,272.26x = 30,408.32 × 5,481.18
  4. Step 4: Simplify right side
    20,272.26x = 166,673,473.70
  5. Step 5: Solve for x
    x = 166,673,473.70/20,272.26
  6. Step 6: Final answer
    x = 8,221.75

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1.5x scale

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.