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Finding the Fourth Proportional to 25.29, 34.84 and 23.70

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Solution

The fourth proportional to 25.29, 34.84 and 23.70 is: 32.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.29 : 34.84 = 23.70 : x
  2. Step 2: Convert to fraction form
    25.29/34.84 = 23.70/x
  3. Step 3: Cross multiply
    25.29x = 34.84 × 23.70
  4. Step 4: Simplify right side
    25.29x = 825.61
  5. Step 5: Solve for x
    x = 825.61/25.29
  6. Step 6: Final answer
    x = 32.64

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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.