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Finding the Fourth Proportional to 22,144.40, 33,216.60 and 13,396.40

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Solution

The fourth proportional to 22,144.40, 33,216.60 and 13,396.40 is: 20,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,144.40 : 33,216.60 = 13,396.40 : x
  2. Step 2: Convert to fraction form
    22,144.40/33,216.60 = 13,396.40/x
  3. Step 3: Cross multiply
    22,144.40x = 33,216.60 × 13,396.40
  4. Step 4: Simplify right side
    22,144.40x = 444,982,860.24
  5. Step 5: Solve for x
    x = 444,982,860.24/22,144.40
  6. Step 6: Final answer
    x = 20,094.60

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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.