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Finding the Fourth Proportional to 22,404, 33,644.40 and 21,236.64

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Solution

The fourth proportional to 22,404, 33,644.40 and 21,236.64 is: 31,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,404 : 33,644.40 = 21,236.64 : x
  2. Step 2: Convert to fraction form
    22,404/33,644.40 = 21,236.64/x
  3. Step 3: Cross multiply
    22,404x = 33,644.40 × 21,236.64
  4. Step 4: Simplify right side
    22,404x = 714,494,010.82
  5. Step 5: Solve for x
    x = 714,494,010.82/22,404
  6. Step 6: Final answer
    x = 31,891.36

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1.5x scale

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.