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Finding the Fourth Proportional to 31.62, 47.44 and 10.26

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Solution

The fourth proportional to 31.62, 47.44 and 10.26 is: 15.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.62 : 47.44 = 10.26 : x
  2. Step 2: Convert to fraction form
    31.62/47.44 = 10.26/x
  3. Step 3: Cross multiply
    31.62x = 47.44 × 10.26
  4. Step 4: Simplify right side
    31.62x = 486.73
  5. Step 5: Solve for x
    x = 486.73/31.62
  6. Step 6: Final answer
    x = 15.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.