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Finding the Fourth Proportional to 22,015.40, 33,021.95 and 7,222.37

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Solution

The fourth proportional to 22,015.40, 33,021.95 and 7,222.37 is: 10,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015.40 : 33,021.95 = 7,222.37 : x
  2. Step 2: Convert to fraction form
    22,015.40/33,021.95 = 7,222.37/x
  3. Step 3: Cross multiply
    22,015.40x = 33,021.95 × 7,222.37
  4. Step 4: Simplify right side
    22,015.40x = 238,496,539.80
  5. Step 5: Solve for x
    x = 238,496,539.80/22,015.40
  6. Step 6: Final answer
    x = 10,833.17

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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.