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Finding the Fourth Proportional to 48.92, 73.40 and 23.28

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Solution

The fourth proportional to 48.92, 73.40 and 23.28 is: 34.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.92 : 73.40 = 23.28 : x
  2. Step 2: Convert to fraction form
    48.92/73.40 = 23.28/x
  3. Step 3: Cross multiply
    48.92x = 73.40 × 23.28
  4. Step 4: Simplify right side
    48.92x = 1,708.75
  5. Step 5: Solve for x
    x = 1,708.75/48.92
  6. Step 6: Final answer
    x = 34.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.