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Finding the Fourth Proportional to 17.01, 23.46 and 16.79

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Solution

The fourth proportional to 17.01, 23.46 and 16.79 is: 23.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.01 : 23.46 = 16.79 : x
  2. Step 2: Convert to fraction form
    17.01/23.46 = 16.79/x
  3. Step 3: Cross multiply
    17.01x = 23.46 × 16.79
  4. Step 4: Simplify right side
    17.01x = 393.78
  5. Step 5: Solve for x
    x = 393.78/17.01
  6. Step 6: Final answer
    x = 23.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.