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Finding the Fourth Proportional to 27,888.70, 41,839.62 and 9,168.79

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Solution

The fourth proportional to 27,888.70, 41,839.62 and 9,168.79 is: 13,755.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.70 : 41,839.62 = 9,168.79 : x
  2. Step 2: Convert to fraction form
    27,888.70/41,839.62 = 9,168.79/x
  3. Step 3: Cross multiply
    27,888.70x = 41,839.62 × 9,168.79
  4. Step 4: Simplify right side
    27,888.70x = 383,618,480.26
  5. Step 5: Solve for x
    x = 383,618,480.26/27,888.70
  6. Step 6: Final answer
    x = 13,755.34

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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.