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Finding the Fourth Proportional to 19.22, 26.49 and 16.62

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Solution

The fourth proportional to 19.22, 26.49 and 16.62 is: 22.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.22 : 26.49 = 16.62 : x
  2. Step 2: Convert to fraction form
    19.22/26.49 = 16.62/x
  3. Step 3: Cross multiply
    19.22x = 26.49 × 16.62
  4. Step 4: Simplify right side
    19.22x = 440.26
  5. Step 5: Solve for x
    x = 440.26/19.22
  6. Step 6: Final answer
    x = 22.91

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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.