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Finding the Fourth Proportional to 23.33, 34.95 and 20.76

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Solution

The fourth proportional to 23.33, 34.95 and 20.76 is: 31.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.33 : 34.95 = 20.76 : x
  2. Step 2: Convert to fraction form
    23.33/34.95 = 20.76/x
  3. Step 3: Cross multiply
    23.33x = 34.95 × 20.76
  4. Step 4: Simplify right side
    23.33x = 725.61
  5. Step 5: Solve for x
    x = 725.61/23.33
  6. Step 6: Final answer
    x = 31.11

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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.