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Finding the Fourth Proportional to 25.20, 34.82 and 23.84

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Solution

The fourth proportional to 25.20, 34.82 and 23.84 is: 32.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.20 : 34.82 = 23.84 : x
  2. Step 2: Convert to fraction form
    25.20/34.82 = 23.84/x
  3. Step 3: Cross multiply
    25.20x = 34.82 × 23.84
  4. Step 4: Simplify right side
    25.20x = 830.11
  5. Step 5: Solve for x
    x = 830.11/25.20
  6. Step 6: Final answer
    x = 32.94

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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.