Home / 27,942.12-41,906.68-8,215.40

Finding the Fourth Proportional to 27,942.12, 41,906.68 and 8,215.40

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Solution

The fourth proportional to 27,942.12, 41,906.68 and 8,215.40 is: 12,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,942.12 : 41,906.68 = 8,215.40 : x
  2. Step 2: Convert to fraction form
    27,942.12/41,906.68 = 8,215.40/x
  3. Step 3: Cross multiply
    27,942.12x = 41,906.68 × 8,215.40
  4. Step 4: Simplify right side
    27,942.12x = 344,280,138.87
  5. Step 5: Solve for x
    x = 344,280,138.87/27,942.12
  6. Step 6: Final answer
    x = 12,321.19

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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.