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Finding the Fourth Proportional to 16, 23.81 and 15.52

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Solution

The fourth proportional to 16, 23.81 and 15.52 is: 23.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16 : 23.81 = 15.52 : x
  2. Step 2: Convert to fraction form
    16/23.81 = 15.52/x
  3. Step 3: Cross multiply
    16x = 23.81 × 15.52
  4. Step 4: Simplify right side
    16x = 369.53
  5. Step 5: Solve for x
    x = 369.53/16
  6. Step 6: Final answer
    x = 23.10

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.