Home / 19,811.31-27,338.88-11,853.06

Finding the Fourth Proportional to 19,811.31, 27,338.88 and 11,853.06

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Solution

The fourth proportional to 19,811.31, 27,338.88 and 11,853.06 is: 16,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.31 : 27,338.88 = 11,853.06 : x
  2. Step 2: Convert to fraction form
    19,811.31/27,338.88 = 11,853.06/x
  3. Step 3: Cross multiply
    19,811.31x = 27,338.88 × 11,853.06
  4. Step 4: Simplify right side
    19,811.31x = 324,049,384.97
  5. Step 5: Solve for x
    x = 324,049,384.97/19,811.31
  6. Step 6: Final answer
    x = 16,356.79

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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.