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Finding the Fourth Proportional to 27,619.20, 41,422.98 and 8,900.88

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Solution

The fourth proportional to 27,619.20, 41,422.98 and 8,900.88 is: 13,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,619.20 : 41,422.98 = 8,900.88 : x
  2. Step 2: Convert to fraction form
    27,619.20/41,422.98 = 8,900.88/x
  3. Step 3: Cross multiply
    27,619.20x = 41,422.98 × 8,900.88
  4. Step 4: Simplify right side
    27,619.20x = 368,700,974.22
  5. Step 5: Solve for x
    x = 368,700,974.22/27,619.20
  6. Step 6: Final answer
    x = 13,349.44

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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.