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Finding the Fourth Proportional to 22,202.53, 33,320.24 and 10,515.78

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Solution

The fourth proportional to 22,202.53, 33,320.24 and 10,515.78 is: 15,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.53 : 33,320.24 = 10,515.78 : x
  2. Step 2: Convert to fraction form
    22,202.53/33,320.24 = 10,515.78/x
  3. Step 3: Cross multiply
    22,202.53x = 33,320.24 × 10,515.78
  4. Step 4: Simplify right side
    22,202.53x = 350,388,385.76
  5. Step 5: Solve for x
    x = 350,388,385.76/22,202.53
  6. Step 6: Final answer
    x = 15,781.46

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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.