Home / 25,728.12-38,592.18-7,260.12

Finding the Fourth Proportional to 25,728.12, 38,592.18 and 7,260.12

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Solution

The fourth proportional to 25,728.12, 38,592.18 and 7,260.12 is: 10,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.12 : 38,592.18 = 7,260.12 : x
  2. Step 2: Convert to fraction form
    25,728.12/38,592.18 = 7,260.12/x
  3. Step 3: Cross multiply
    25,728.12x = 38,592.18 × 7,260.12
  4. Step 4: Simplify right side
    25,728.12x = 280,183,857.86
  5. Step 5: Solve for x
    x = 280,183,857.86/25,728.12
  6. Step 6: Final answer
    x = 10,890.18

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Similar ratio
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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.