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Finding the Fourth Proportional to 27,212.54, 40,817.75 and 7,490.57

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Solution

The fourth proportional to 27,212.54, 40,817.75 and 7,490.57 is: 11,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,212.54 : 40,817.75 = 7,490.57 : x
  2. Step 2: Convert to fraction form
    27,212.54/40,817.75 = 7,490.57/x
  3. Step 3: Cross multiply
    27,212.54x = 40,817.75 × 7,490.57
  4. Step 4: Simplify right side
    27,212.54x = 305,747,972.08
  5. Step 5: Solve for x
    x = 305,747,972.08/27,212.54
  6. Step 6: Final answer
    x = 11,235.56

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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.