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Finding the Fourth Proportional to 23.59, 35.34 and 20.66

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Solution

The fourth proportional to 23.59, 35.34 and 20.66 is: 30.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.59 : 35.34 = 20.66 : x
  2. Step 2: Convert to fraction form
    23.59/35.34 = 20.66/x
  3. Step 3: Cross multiply
    23.59x = 35.34 × 20.66
  4. Step 4: Simplify right side
    23.59x = 729.87
  5. Step 5: Solve for x
    x = 729.87/23.59
  6. Step 6: Final answer
    x = 30.94

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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.