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Finding the Fourth Proportional to 27,042.70, 40,527.60 and 18,132.70

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Solution

The fourth proportional to 27,042.70, 40,527.60 and 18,132.70 is: 27,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,042.70 : 40,527.60 = 18,132.70 : x
  2. Step 2: Convert to fraction form
    27,042.70/40,527.60 = 18,132.70/x
  3. Step 3: Cross multiply
    27,042.70x = 40,527.60 × 18,132.70
  4. Step 4: Simplify right side
    27,042.70x = 734,874,812.52
  5. Step 5: Solve for x
    x = 734,874,812.52/27,042.70
  6. Step 6: Final answer
    x = 27,174.61

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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.