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Finding the Fourth Proportional to 25.38, 38.26 and 23.46

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Solution

The fourth proportional to 25.38, 38.26 and 23.46 is: 35.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.38 : 38.26 = 23.46 : x
  2. Step 2: Convert to fraction form
    25.38/38.26 = 23.46/x
  3. Step 3: Cross multiply
    25.38x = 38.26 × 23.46
  4. Step 4: Simplify right side
    25.38x = 897.58
  5. Step 5: Solve for x
    x = 897.58/25.38
  6. Step 6: Final answer
    x = 35.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.