Home / 22,187.94-33,282.21-12,389.57

Finding the Fourth Proportional to 22,187.94, 33,282.21 and 12,389.57

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Solution

The fourth proportional to 22,187.94, 33,282.21 and 12,389.57 is: 18,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.94 : 33,282.21 = 12,389.57 : x
  2. Step 2: Convert to fraction form
    22,187.94/33,282.21 = 12,389.57/x
  3. Step 3: Cross multiply
    22,187.94x = 33,282.21 × 12,389.57
  4. Step 4: Simplify right side
    22,187.94x = 412,352,275.41
  5. Step 5: Solve for x
    x = 412,352,275.41/22,187.94
  6. Step 6: Final answer
    x = 18,584.53

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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.