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Finding the Fourth Proportional to 30.57, 46.04 and 27.56

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Solution

The fourth proportional to 30.57, 46.04 and 27.56 is: 41.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.57 : 46.04 = 27.56 : x
  2. Step 2: Convert to fraction form
    30.57/46.04 = 27.56/x
  3. Step 3: Cross multiply
    30.57x = 46.04 × 27.56
  4. Step 4: Simplify right side
    30.57x = 1,269.05
  5. Step 5: Solve for x
    x = 1,269.05/30.57
  6. Step 6: Final answer
    x = 41.51

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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.