Home / 20,190.39-27,859.41-11,237.66

Finding the Fourth Proportional to 20,190.39, 27,859.41 and 11,237.66

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Solution

The fourth proportional to 20,190.39, 27,859.41 and 11,237.66 is: 15,506.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.39 : 27,859.41 = 11,237.66 : x
  2. Step 2: Convert to fraction form
    20,190.39/27,859.41 = 11,237.66/x
  3. Step 3: Cross multiply
    20,190.39x = 27,859.41 × 11,237.66
  4. Step 4: Simplify right side
    20,190.39x = 313,074,577.38
  5. Step 5: Solve for x
    x = 313,074,577.38/20,190.39
  6. Step 6: Final answer
    x = 15,506.12

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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.