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Finding the Fourth Proportional to 25.93, 39.23 and 25.73

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Solution

The fourth proportional to 25.93, 39.23 and 25.73 is: 38.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.93 : 39.23 = 25.73 : x
  2. Step 2: Convert to fraction form
    25.93/39.23 = 25.73/x
  3. Step 3: Cross multiply
    25.93x = 39.23 × 25.73
  4. Step 4: Simplify right side
    25.93x = 1,009.06
  5. Step 5: Solve for x
    x = 1,009.06/25.93
  6. Step 6: Final answer
    x = 38.92

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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.