Home / 25,949.12-38,919.76-7,227.20

Finding the Fourth Proportional to 25,949.12, 38,919.76 and 7,227.20

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Solution

The fourth proportional to 25,949.12, 38,919.76 and 7,227.20 is: 10,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,949.12 : 38,919.76 = 7,227.20 : x
  2. Step 2: Convert to fraction form
    25,949.12/38,919.76 = 7,227.20/x
  3. Step 3: Cross multiply
    25,949.12x = 38,919.76 × 7,227.20
  4. Step 4: Simplify right side
    25,949.12x = 281,280,889.47
  5. Step 5: Solve for x
    x = 281,280,889.47/25,949.12
  6. Step 6: Final answer
    x = 10,839.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.