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Finding the Fourth Proportional to 27,391.62, 41,087.25 and 21,160.62

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Solution

The fourth proportional to 27,391.62, 41,087.25 and 21,160.62 is: 31,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,391.62 : 41,087.25 = 21,160.62 : x
  2. Step 2: Convert to fraction form
    27,391.62/41,087.25 = 21,160.62/x
  3. Step 3: Cross multiply
    27,391.62x = 41,087.25 × 21,160.62
  4. Step 4: Simplify right side
    27,391.62x = 869,431,684.10
  5. Step 5: Solve for x
    x = 869,431,684.10/27,391.62
  6. Step 6: Final answer
    x = 31,740.79

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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.