Home / 33,191.44-45,789.20-21,857.92

Finding the Fourth Proportional to 33,191.44, 45,789.20 and 21,857.92

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Solution

The fourth proportional to 33,191.44, 45,789.20 and 21,857.92 is: 30,154.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,191.44 : 45,789.20 = 21,857.92 : x
  2. Step 2: Convert to fraction form
    33,191.44/45,789.20 = 21,857.92/x
  3. Step 3: Cross multiply
    33,191.44x = 45,789.20 × 21,857.92
  4. Step 4: Simplify right side
    33,191.44x = 1,000,856,670.46
  5. Step 5: Solve for x
    x = 1,000,856,670.46/33,191.44
  6. Step 6: Final answer
    x = 30,154.06

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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.