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Finding the Fourth Proportional to 30.93, 46.41 and 17.22

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Solution

The fourth proportional to 30.93, 46.41 and 17.22 is: 25.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.93 : 46.41 = 17.22 : x
  2. Step 2: Convert to fraction form
    30.93/46.41 = 17.22/x
  3. Step 3: Cross multiply
    30.93x = 46.41 × 17.22
  4. Step 4: Simplify right side
    30.93x = 799.18
  5. Step 5: Solve for x
    x = 799.18/30.93
  6. Step 6: Final answer
    x = 25.84

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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.