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Finding the Fourth Proportional to 16.01, 23.89 and 13.62

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Solution

The fourth proportional to 16.01, 23.89 and 13.62 is: 20.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.01 : 23.89 = 13.62 : x
  2. Step 2: Convert to fraction form
    16.01/23.89 = 13.62/x
  3. Step 3: Cross multiply
    16.01x = 23.89 × 13.62
  4. Step 4: Simplify right side
    16.01x = 325.37
  5. Step 5: Solve for x
    x = 325.37/16.01
  6. Step 6: Final answer
    x = 20.32

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Why These Related Problems?

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