Home / 39,826.06-54,958.68-21,921.08

Finding the Fourth Proportional to 39,826.06, 54,958.68 and 21,921.08

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Solution

The fourth proportional to 39,826.06, 54,958.68 and 21,921.08 is: 30,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,826.06 : 54,958.68 = 21,921.08 : x
  2. Step 2: Convert to fraction form
    39,826.06/54,958.68 = 21,921.08/x
  3. Step 3: Cross multiply
    39,826.06x = 54,958.68 × 21,921.08
  4. Step 4: Simplify right side
    39,826.06x = 1,204,753,620.97
  5. Step 5: Solve for x
    x = 1,204,753,620.97/39,826.06
  6. Step 6: Final answer
    x = 30,250.38

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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.