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Finding the Fourth Proportional to 40.30, 60.47 and 16.25

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Solution

The fourth proportional to 40.30, 60.47 and 16.25 is: 24.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40.30 : 60.47 = 16.25 : x
  2. Step 2: Convert to fraction form
    40.30/60.47 = 16.25/x
  3. Step 3: Cross multiply
    40.30x = 60.47 × 16.25
  4. Step 4: Simplify right side
    40.30x = 982.56
  5. Step 5: Solve for x
    x = 982.56/40.30
  6. Step 6: Final answer
    x = 24.38

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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.