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Finding the Fourth Proportional to 22.60, 31.22 and 19.52

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Solution

The fourth proportional to 22.60, 31.22 and 19.52 is: 26.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.60 : 31.22 = 19.52 : x
  2. Step 2: Convert to fraction form
    22.60/31.22 = 19.52/x
  3. Step 3: Cross multiply
    22.60x = 31.22 × 19.52
  4. Step 4: Simplify right side
    22.60x = 609.41
  5. Step 5: Solve for x
    x = 609.41/22.60
  6. Step 6: Final answer
    x = 26.97

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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.