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Finding the Fourth Proportional to 25.27, 34.89 and 17.51

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Solution

The fourth proportional to 25.27, 34.89 and 17.51 is: 24.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.27 : 34.89 = 17.51 : x
  2. Step 2: Convert to fraction form
    25.27/34.89 = 17.51/x
  3. Step 3: Cross multiply
    25.27x = 34.89 × 17.51
  4. Step 4: Simplify right side
    25.27x = 611.01
  5. Step 5: Solve for x
    x = 611.01/25.27
  6. Step 6: Final answer
    x = 24.18

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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.