Home / 20,057.94-27,680.98-11,106.43

Finding the Fourth Proportional to 20,057.94, 27,680.98 and 11,106.43

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Solution

The fourth proportional to 20,057.94, 27,680.98 and 11,106.43 is: 15,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.94 : 27,680.98 = 11,106.43 : x
  2. Step 2: Convert to fraction form
    20,057.94/27,680.98 = 11,106.43/x
  3. Step 3: Cross multiply
    20,057.94x = 27,680.98 × 11,106.43
  4. Step 4: Simplify right side
    20,057.94x = 307,436,866.70
  5. Step 5: Solve for x
    x = 307,436,866.70/20,057.94
  6. Step 6: Final answer
    x = 15,327.44

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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.