Home / 33,109.20-45,690.30-18,961.92

Finding the Fourth Proportional to 33,109.20, 45,690.30 and 18,961.92

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Solution

The fourth proportional to 33,109.20, 45,690.30 and 18,961.92 is: 26,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,109.20 : 45,690.30 = 18,961.92 : x
  2. Step 2: Convert to fraction form
    33,109.20/45,690.30 = 18,961.92/x
  3. Step 3: Cross multiply
    33,109.20x = 45,690.30 × 18,961.92
  4. Step 4: Simplify right side
    33,109.20x = 866,375,813.38
  5. Step 5: Solve for x
    x = 866,375,813.38/33,109.20
  6. Step 6: Final answer
    x = 26,167.22

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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.