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Finding the Fourth Proportional to 17.99, 26.92 and 14.58

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Solution

The fourth proportional to 17.99, 26.92 and 14.58 is: 21.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.99 : 26.92 = 14.58 : x
  2. Step 2: Convert to fraction form
    17.99/26.92 = 14.58/x
  3. Step 3: Cross multiply
    17.99x = 26.92 × 14.58
  4. Step 4: Simplify right side
    17.99x = 392.49
  5. Step 5: Solve for x
    x = 392.49/17.99
  6. Step 6: Final answer
    x = 21.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.