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Finding the Fourth Proportional to 27,379.44, 41,062.88 and 7,659.40

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Solution

The fourth proportional to 27,379.44, 41,062.88 and 7,659.40 is: 11,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.44 : 41,062.88 = 7,659.40 : x
  2. Step 2: Convert to fraction form
    27,379.44/41,062.88 = 7,659.40/x
  3. Step 3: Cross multiply
    27,379.44x = 41,062.88 × 7,659.40
  4. Step 4: Simplify right side
    27,379.44x = 314,517,023.07
  5. Step 5: Solve for x
    x = 314,517,023.07/27,379.44
  6. Step 6: Final answer
    x = 11,487.34

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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.