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Finding the Fourth Proportional to 24.55, 33.86 and 14.85

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Solution

The fourth proportional to 24.55, 33.86 and 14.85 is: 20.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.55 : 33.86 = 14.85 : x
  2. Step 2: Convert to fraction form
    24.55/33.86 = 14.85/x
  3. Step 3: Cross multiply
    24.55x = 33.86 × 14.85
  4. Step 4: Simplify right side
    24.55x = 502.86
  5. Step 5: Solve for x
    x = 502.86/24.55
  6. Step 6: Final answer
    x = 20.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.