Home / 25,647.90-38,469.66-8,115.18

Finding the Fourth Proportional to 25,647.90, 38,469.66 and 8,115.18

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Solution

The fourth proportional to 25,647.90, 38,469.66 and 8,115.18 is: 12,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647.90 : 38,469.66 = 8,115.18 : x
  2. Step 2: Convert to fraction form
    25,647.90/38,469.66 = 8,115.18/x
  3. Step 3: Cross multiply
    25,647.90x = 38,469.66 × 8,115.18
  4. Step 4: Simplify right side
    25,647.90x = 312,188,215.44
  5. Step 5: Solve for x
    x = 312,188,215.44/25,647.90
  6. Step 6: Final answer
    x = 12,172.08

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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.