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Finding the Fourth Proportional to 32.93, 49.34 and 15.78

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Solution

The fourth proportional to 32.93, 49.34 and 15.78 is: 23.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.93 : 49.34 = 15.78 : x
  2. Step 2: Convert to fraction form
    32.93/49.34 = 15.78/x
  3. Step 3: Cross multiply
    32.93x = 49.34 × 15.78
  4. Step 4: Simplify right side
    32.93x = 778.59
  5. Step 5: Solve for x
    x = 778.59/32.93
  6. Step 6: Final answer
    x = 23.64

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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.