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Finding the Fourth Proportional to 27,374.40, 41,049.60 and 12,578.40

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Solution

The fourth proportional to 27,374.40, 41,049.60 and 12,578.40 is: 18,862.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,374.40 : 41,049.60 = 12,578.40 : x
  2. Step 2: Convert to fraction form
    27,374.40/41,049.60 = 12,578.40/x
  3. Step 3: Cross multiply
    27,374.40x = 41,049.60 × 12,578.40
  4. Step 4: Simplify right side
    27,374.40x = 516,338,288.64
  5. Step 5: Solve for x
    x = 516,338,288.64/27,374.40
  6. Step 6: Final answer
    x = 18,862.09

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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.