Home / 25,519.92-38,279.88-7,989.84

Finding the Fourth Proportional to 25,519.92, 38,279.88 and 7,989.84

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Solution

The fourth proportional to 25,519.92, 38,279.88 and 7,989.84 is: 11,984.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,519.92 : 38,279.88 = 7,989.84 : x
  2. Step 2: Convert to fraction form
    25,519.92/38,279.88 = 7,989.84/x
  3. Step 3: Cross multiply
    25,519.92x = 38,279.88 × 7,989.84
  4. Step 4: Simplify right side
    25,519.92x = 305,850,116.42
  5. Step 5: Solve for x
    x = 305,850,116.42/25,519.92
  6. Step 6: Final answer
    x = 11,984.76

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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.