Home / 20,189.93-27,863.62-11,694.35

Finding the Fourth Proportional to 20,189.93, 27,863.62 and 11,694.35

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Solution

The fourth proportional to 20,189.93, 27,863.62 and 11,694.35 is: 16,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.93 : 27,863.62 = 11,694.35 : x
  2. Step 2: Convert to fraction form
    20,189.93/27,863.62 = 11,694.35/x
  3. Step 3: Cross multiply
    20,189.93x = 27,863.62 × 11,694.35
  4. Step 4: Simplify right side
    20,189.93x = 325,846,924.55
  5. Step 5: Solve for x
    x = 325,846,924.55/20,189.93
  6. Step 6: Final answer
    x = 16,139.08

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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.