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Finding the Fourth Proportional to 22,156.64, 33,247.38 and 11,768.12

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Solution

The fourth proportional to 22,156.64, 33,247.38 and 11,768.12 is: 17,658.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,156.64 : 33,247.38 = 11,768.12 : x
  2. Step 2: Convert to fraction form
    22,156.64/33,247.38 = 11,768.12/x
  3. Step 3: Cross multiply
    22,156.64x = 33,247.38 × 11,768.12
  4. Step 4: Simplify right side
    22,156.64x = 391,259,157.53
  5. Step 5: Solve for x
    x = 391,259,157.53/22,156.64
  6. Step 6: Final answer
    x = 17,658.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.