Home / 33,138.83-45,716.72-22,380.20

Finding the Fourth Proportional to 33,138.83, 45,716.72 and 22,380.20

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Solution

The fourth proportional to 33,138.83, 45,716.72 and 22,380.20 is: 30,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.83 : 45,716.72 = 22,380.20 : x
  2. Step 2: Convert to fraction form
    33,138.83/45,716.72 = 22,380.20/x
  3. Step 3: Cross multiply
    33,138.83x = 45,716.72 × 22,380.20
  4. Step 4: Simplify right side
    33,138.83x = 1,023,149,336.94
  5. Step 5: Solve for x
    x = 1,023,149,336.94/33,138.83
  6. Step 6: Final answer
    x = 30,874.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.