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Finding the Fourth Proportional to 24.59, 36.89 and 13.17

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Solution

The fourth proportional to 24.59, 36.89 and 13.17 is: 19.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.59 : 36.89 = 13.17 : x
  2. Step 2: Convert to fraction form
    24.59/36.89 = 13.17/x
  3. Step 3: Cross multiply
    24.59x = 36.89 × 13.17
  4. Step 4: Simplify right side
    24.59x = 485.84
  5. Step 5: Solve for x
    x = 485.84/24.59
  6. Step 6: Final answer
    x = 19.76

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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.