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Finding the Fourth Proportional to 29.36, 40.50 and 22.10

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Solution

The fourth proportional to 29.36, 40.50 and 22.10 is: 30.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.36 : 40.50 = 22.10 : x
  2. Step 2: Convert to fraction form
    29.36/40.50 = 22.10/x
  3. Step 3: Cross multiply
    29.36x = 40.50 × 22.10
  4. Step 4: Simplify right side
    29.36x = 895.05
  5. Step 5: Solve for x
    x = 895.05/29.36
  6. Step 6: Final answer
    x = 30.49

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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.