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Finding the Fourth Proportional to 29.94, 45.14 and 29.40

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Solution

The fourth proportional to 29.94, 45.14 and 29.40 is: 44.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.94 : 45.14 = 29.40 : x
  2. Step 2: Convert to fraction form
    29.94/45.14 = 29.40/x
  3. Step 3: Cross multiply
    29.94x = 45.14 × 29.40
  4. Step 4: Simplify right side
    29.94x = 1,327.12
  5. Step 5: Solve for x
    x = 1,327.12/29.94
  6. Step 6: Final answer
    x = 44.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.