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Finding the Fourth Proportional to 30.41, 42 and 24.29

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Solution

The fourth proportional to 30.41, 42 and 24.29 is: 33.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.41 : 42 = 24.29 : x
  2. Step 2: Convert to fraction form
    30.41/42 = 24.29/x
  3. Step 3: Cross multiply
    30.41x = 42 × 24.29
  4. Step 4: Simplify right side
    30.41x = 1,020.18
  5. Step 5: Solve for x
    x = 1,020.18/30.41
  6. Step 6: Final answer
    x = 33.55

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Similar ratio
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1.5x scale

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.