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Finding the Fourth Proportional to 27.72, 41.59 and 9.68

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Solution

The fourth proportional to 27.72, 41.59 and 9.68 is: 14.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.72 : 41.59 = 9.68 : x
  2. Step 2: Convert to fraction form
    27.72/41.59 = 9.68/x
  3. Step 3: Cross multiply
    27.72x = 41.59 × 9.68
  4. Step 4: Simplify right side
    27.72x = 402.67
  5. Step 5: Solve for x
    x = 402.67/27.72
  6. Step 6: Final answer
    x = 14.53

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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.