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Finding the Fourth Proportional to 29.70, 41.01 and 22.47

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Solution

The fourth proportional to 29.70, 41.01 and 22.47 is: 31.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.70 : 41.01 = 22.47 : x
  2. Step 2: Convert to fraction form
    29.70/41.01 = 22.47/x
  3. Step 3: Cross multiply
    29.70x = 41.01 × 22.47
  4. Step 4: Simplify right side
    29.70x = 921.49
  5. Step 5: Solve for x
    x = 921.49/29.70
  6. Step 6: Final answer
    x = 31.03

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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.