Home / 33,305.78-45,961.42-18,198.11

Finding the Fourth Proportional to 33,305.78, 45,961.42 and 18,198.11

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Solution

The fourth proportional to 33,305.78, 45,961.42 and 18,198.11 is: 25,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,305.78 : 45,961.42 = 18,198.11 : x
  2. Step 2: Convert to fraction form
    33,305.78/45,961.42 = 18,198.11/x
  3. Step 3: Cross multiply
    33,305.78x = 45,961.42 × 18,198.11
  4. Step 4: Simplify right side
    33,305.78x = 836,410,976.92
  5. Step 5: Solve for x
    x = 836,410,976.92/33,305.78
  6. Step 6: Final answer
    x = 25,113.09

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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.