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Finding the Fourth Proportional to 32.06, 47.81 and 30.53

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Solution

The fourth proportional to 32.06, 47.81 and 30.53 is: 45.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.06 : 47.81 = 30.53 : x
  2. Step 2: Convert to fraction form
    32.06/47.81 = 30.53/x
  3. Step 3: Cross multiply
    32.06x = 47.81 × 30.53
  4. Step 4: Simplify right side
    32.06x = 1,459.25
  5. Step 5: Solve for x
    x = 1,459.25/32.06
  6. Step 6: Final answer
    x = 45.52

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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.