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Finding the Fourth Proportional to 27,590, 41,391.48 and 9,122

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Solution

The fourth proportional to 27,590, 41,391.48 and 9,122 is: 13,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,590 : 41,391.48 = 9,122 : x
  2. Step 2: Convert to fraction form
    27,590/41,391.48 = 9,122/x
  3. Step 3: Cross multiply
    27,590x = 41,391.48 × 9,122
  4. Step 4: Simplify right side
    27,590x = 377,573,080.56
  5. Step 5: Solve for x
    x = 377,573,080.56/27,590
  6. Step 6: Final answer
    x = 13,685.14

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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.