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Finding the Fourth Proportional to 32.02, 47.78 and 29.76

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Solution

The fourth proportional to 32.02, 47.78 and 29.76 is: 44.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.02 : 47.78 = 29.76 : x
  2. Step 2: Convert to fraction form
    32.02/47.78 = 29.76/x
  3. Step 3: Cross multiply
    32.02x = 47.78 × 29.76
  4. Step 4: Simplify right side
    32.02x = 1,421.93
  5. Step 5: Solve for x
    x = 1,421.93/32.02
  6. Step 6: Final answer
    x = 44.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.