Home / 25,375.92-34,995.63-21,789.75

Finding the Fourth Proportional to 25,375.92, 34,995.63 and 21,789.75

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Solution

The fourth proportional to 25,375.92, 34,995.63 and 21,789.75 is: 30,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,375.92 : 34,995.63 = 21,789.75 : x
  2. Step 2: Convert to fraction form
    25,375.92/34,995.63 = 21,789.75/x
  3. Step 3: Cross multiply
    25,375.92x = 34,995.63 × 21,789.75
  4. Step 4: Simplify right side
    25,375.92x = 762,546,028.79
  5. Step 5: Solve for x
    x = 762,546,028.79/25,375.92
  6. Step 6: Final answer
    x = 30,049.99

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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.