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Finding the Fourth Proportional to 16.62, 24.99 and 13.98

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Solution

The fourth proportional to 16.62, 24.99 and 13.98 is: 21.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.62 : 24.99 = 13.98 : x
  2. Step 2: Convert to fraction form
    16.62/24.99 = 13.98/x
  3. Step 3: Cross multiply
    16.62x = 24.99 × 13.98
  4. Step 4: Simplify right side
    16.62x = 349.36
  5. Step 5: Solve for x
    x = 349.36/16.62
  6. Step 6: Final answer
    x = 21.02

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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.