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Finding the Fourth Proportional to 32.89, 49.32 and 11.50

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Solution

The fourth proportional to 32.89, 49.32 and 11.50 is: 17.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.89 : 49.32 = 11.50 : x
  2. Step 2: Convert to fraction form
    32.89/49.32 = 11.50/x
  3. Step 3: Cross multiply
    32.89x = 49.32 × 11.50
  4. Step 4: Simplify right side
    32.89x = 567.18
  5. Step 5: Solve for x
    x = 567.18/32.89
  6. Step 6: Final answer
    x = 17.24

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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.