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Finding the Fourth Proportional to 27.35, 40.99 and 13.83

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Solution

The fourth proportional to 27.35, 40.99 and 13.83 is: 20.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.35 : 40.99 = 13.83 : x
  2. Step 2: Convert to fraction form
    27.35/40.99 = 13.83/x
  3. Step 3: Cross multiply
    27.35x = 40.99 × 13.83
  4. Step 4: Simplify right side
    27.35x = 566.89
  5. Step 5: Solve for x
    x = 566.89/27.35
  6. Step 6: Final answer
    x = 20.73

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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.