Home / 22,033.32-30,406.31-11,961.78

Finding the Fourth Proportional to 22,033.32, 30,406.31 and 11,961.78

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Solution

The fourth proportional to 22,033.32, 30,406.31 and 11,961.78 is: 16,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,033.32 : 30,406.31 = 11,961.78 : x
  2. Step 2: Convert to fraction form
    22,033.32/30,406.31 = 11,961.78/x
  3. Step 3: Cross multiply
    22,033.32x = 30,406.31 × 11,961.78
  4. Step 4: Simplify right side
    22,033.32x = 363,713,531.02
  5. Step 5: Solve for x
    x = 363,713,531.02/22,033.32
  6. Step 6: Final answer
    x = 16,507.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.