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Finding the Fourth Proportional to 17.92, 27.00 and 13.94

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Solution

The fourth proportional to 17.92, 27.00 and 13.94 is: 21.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.92 : 27.00 = 13.94 : x
  2. Step 2: Convert to fraction form
    17.92/27.00 = 13.94/x
  3. Step 3: Cross multiply
    17.92x = 27.00 × 13.94
  4. Step 4: Simplify right side
    17.92x = 376.31
  5. Step 5: Solve for x
    x = 376.31/17.92
  6. Step 6: Final answer
    x = 21.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.