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Finding the Fourth Proportional to 22,016.38, 33,017.63 and 7,221.86

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Solution

The fourth proportional to 22,016.38, 33,017.63 and 7,221.86 is: 10,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,016.38 : 33,017.63 = 7,221.86 : x
  2. Step 2: Convert to fraction form
    22,016.38/33,017.63 = 7,221.86/x
  3. Step 3: Cross multiply
    22,016.38x = 33,017.63 × 7,221.86
  4. Step 4: Simplify right side
    22,016.38x = 238,448,536.30
  5. Step 5: Solve for x
    x = 238,448,536.30/22,016.38
  6. Step 6: Final answer
    x = 10,830.51

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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.