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Finding the Fourth Proportional to 25.31, 35.12 and 24.45

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Solution

The fourth proportional to 25.31, 35.12 and 24.45 is: 33.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.31 : 35.12 = 24.45 : x
  2. Step 2: Convert to fraction form
    25.31/35.12 = 24.45/x
  3. Step 3: Cross multiply
    25.31x = 35.12 × 24.45
  4. Step 4: Simplify right side
    25.31x = 858.56
  5. Step 5: Solve for x
    x = 858.56/25.31
  6. Step 6: Final answer
    x = 33.93

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.