Home / 25,845.75-38,766.20-9,205.11

Finding the Fourth Proportional to 25,845.75, 38,766.20 and 9,205.11

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Solution

The fourth proportional to 25,845.75, 38,766.20 and 9,205.11 is: 13,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,845.75 : 38,766.20 = 9,205.11 : x
  2. Step 2: Convert to fraction form
    25,845.75/38,766.20 = 9,205.11/x
  3. Step 3: Cross multiply
    25,845.75x = 38,766.20 × 9,205.11
  4. Step 4: Simplify right side
    25,845.75x = 356,847,089.26
  5. Step 5: Solve for x
    x = 356,847,089.26/25,845.75
  6. Step 6: Final answer
    x = 13,806.80

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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.