Home / 27,856.45-41,780.32-9,136.09

Finding the Fourth Proportional to 27,856.45, 41,780.32 and 9,136.09

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Solution

The fourth proportional to 27,856.45, 41,780.32 and 9,136.09 is: 13,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,856.45 : 41,780.32 = 9,136.09 : x
  2. Step 2: Convert to fraction form
    27,856.45/41,780.32 = 9,136.09/x
  3. Step 3: Cross multiply
    27,856.45x = 41,780.32 × 9,136.09
  4. Step 4: Simplify right side
    27,856.45x = 381,708,793.13
  5. Step 5: Solve for x
    x = 381,708,793.13/27,856.45
  6. Step 6: Final answer
    x = 13,702.71

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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.