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Finding the Fourth Proportional to 27,643.20, 41,470.20 and 11,000.40

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Solution

The fourth proportional to 27,643.20, 41,470.20 and 11,000.40 is: 16,502.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.20 : 41,470.20 = 11,000.40 : x
  2. Step 2: Convert to fraction form
    27,643.20/41,470.20 = 11,000.40/x
  3. Step 3: Cross multiply
    27,643.20x = 41,470.20 × 11,000.40
  4. Step 4: Simplify right side
    27,643.20x = 456,188,788.08
  5. Step 5: Solve for x
    x = 456,188,788.08/27,643.20
  6. Step 6: Final answer
    x = 16,502.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.