Home / 25,728.76-38,583.30-9,085.68

Finding the Fourth Proportional to 25,728.76, 38,583.30 and 9,085.68

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Solution

The fourth proportional to 25,728.76, 38,583.30 and 9,085.68 is: 13,625.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.76 : 38,583.30 = 9,085.68 : x
  2. Step 2: Convert to fraction form
    25,728.76/38,583.30 = 9,085.68/x
  3. Step 3: Cross multiply
    25,728.76x = 38,583.30 × 9,085.68
  4. Step 4: Simplify right side
    25,728.76x = 350,555,517.14
  5. Step 5: Solve for x
    x = 350,555,517.14/25,728.76
  6. Step 6: Final answer
    x = 13,625.05

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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.