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Finding the Fourth Proportional to 27,489.60, 41,216.40 and 10,839.60

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Solution

The fourth proportional to 27,489.60, 41,216.40 and 10,839.60 is: 16,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,489.60 : 41,216.40 = 10,839.60 : x
  2. Step 2: Convert to fraction form
    27,489.60/41,216.40 = 10,839.60/x
  3. Step 3: Cross multiply
    27,489.60x = 41,216.40 × 10,839.60
  4. Step 4: Simplify right side
    27,489.60x = 446,769,289.44
  5. Step 5: Solve for x
    x = 446,769,289.44/27,489.60
  6. Step 6: Final answer
    x = 16,252.30

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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.