Home / 39,826.88-54,961.92-21,922.88

Finding the Fourth Proportional to 39,826.88, 54,961.92 and 21,922.88

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Solution

The fourth proportional to 39,826.88, 54,961.92 and 21,922.88 is: 30,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,826.88 : 54,961.92 = 21,922.88 : x
  2. Step 2: Convert to fraction form
    39,826.88/54,961.92 = 21,922.88/x
  3. Step 3: Cross multiply
    39,826.88x = 54,961.92 × 21,922.88
  4. Step 4: Simplify right side
    39,826.88x = 1,204,923,576.73
  5. Step 5: Solve for x
    x = 1,204,923,576.73/39,826.88
  6. Step 6: Final answer
    x = 30,254.03

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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.