Home / 30.12-41.14-29.60

Finding the Fourth Proportional to 30.12, 41.14 and 29.60

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Solution

The fourth proportional to 30.12, 41.14 and 29.60 is: 40.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.12 : 41.14 = 29.60 : x
  2. Step 2: Convert to fraction form
    30.12/41.14 = 29.60/x
  3. Step 3: Cross multiply
    30.12x = 41.14 × 29.60
  4. Step 4: Simplify right side
    30.12x = 1,217.74
  5. Step 5: Solve for x
    x = 1,217.74/30.12
  6. Step 6: Final answer
    x = 40.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.