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Finding the Fourth Proportional to 22,163.62, 33,115.62 and 21,388.45

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Solution

The fourth proportional to 22,163.62, 33,115.62 and 21,388.45 is: 31,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.62 : 33,115.62 = 21,388.45 : x
  2. Step 2: Convert to fraction form
    22,163.62/33,115.62 = 21,388.45/x
  3. Step 3: Cross multiply
    22,163.62x = 33,115.62 × 21,388.45
  4. Step 4: Simplify right side
    22,163.62x = 708,291,782.59
  5. Step 5: Solve for x
    x = 708,291,782.59/22,163.62
  6. Step 6: Final answer
    x = 31,957.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.