Home / 27,856.40-41,780.55-8,132.90

Finding the Fourth Proportional to 27,856.40, 41,780.55 and 8,132.90

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Solution

The fourth proportional to 27,856.40, 41,780.55 and 8,132.90 is: 12,198.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,856.40 : 41,780.55 = 8,132.90 : x
  2. Step 2: Convert to fraction form
    27,856.40/41,780.55 = 8,132.90/x
  3. Step 3: Cross multiply
    27,856.40x = 41,780.55 × 8,132.90
  4. Step 4: Simplify right side
    27,856.40x = 339,797,035.10
  5. Step 5: Solve for x
    x = 339,797,035.10/27,856.40
  6. Step 6: Final answer
    x = 12,198.17

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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.