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Finding the Fourth Proportional to 27,376.80, 41,000.40 and 16,879.20

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Solution

The fourth proportional to 27,376.80, 41,000.40 and 16,879.20 is: 25,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,376.80 : 41,000.40 = 16,879.20 : x
  2. Step 2: Convert to fraction form
    27,376.80/41,000.40 = 16,879.20/x
  3. Step 3: Cross multiply
    27,376.80x = 41,000.40 × 16,879.20
  4. Step 4: Simplify right side
    27,376.80x = 692,053,951.68
  5. Step 5: Solve for x
    x = 692,053,951.68/27,376.80
  6. Step 6: Final answer
    x = 25,278.85

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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.