Home / 19,839.57-27,378.60-11,341.88

Finding the Fourth Proportional to 19,839.57, 27,378.60 and 11,341.88

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Solution

The fourth proportional to 19,839.57, 27,378.60 and 11,341.88 is: 15,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.57 : 27,378.60 = 11,341.88 : x
  2. Step 2: Convert to fraction form
    19,839.57/27,378.60 = 11,341.88/x
  3. Step 3: Cross multiply
    19,839.57x = 27,378.60 × 11,341.88
  4. Step 4: Simplify right side
    19,839.57x = 310,524,739.06
  5. Step 5: Solve for x
    x = 310,524,739.06/19,839.57
  6. Step 6: Final answer
    x = 15,651.79

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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.