Home / 33,375.20-49,965.60-20,220.80

Finding the Fourth Proportional to 33,375.20, 49,965.60 and 20,220.80

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Solution

The fourth proportional to 33,375.20, 49,965.60 and 20,220.80 is: 30,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,375.20 : 49,965.60 = 20,220.80 : x
  2. Step 2: Convert to fraction form
    33,375.20/49,965.60 = 20,220.80/x
  3. Step 3: Cross multiply
    33,375.20x = 49,965.60 × 20,220.80
  4. Step 4: Simplify right side
    33,375.20x = 1,010,344,404.48
  5. Step 5: Solve for x
    x = 1,010,344,404.48/33,375.20
  6. Step 6: Final answer
    x = 30,272.31

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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.