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Finding the Fourth Proportional to 22,018.77, 33,018.84 and 8,867.61

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Solution

The fourth proportional to 22,018.77, 33,018.84 and 8,867.61 is: 13,297.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,018.77 : 33,018.84 = 8,867.61 : x
  2. Step 2: Convert to fraction form
    22,018.77/33,018.84 = 8,867.61/x
  3. Step 3: Cross multiply
    22,018.77x = 33,018.84 × 8,867.61
  4. Step 4: Simplify right side
    22,018.77x = 292,798,195.77
  5. Step 5: Solve for x
    x = 292,798,195.77/22,018.77
  6. Step 6: Final answer
    x = 13,297.66

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Why These Related Problems?

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