Home / 19,891.53-27,447.66-12,335.12

Finding the Fourth Proportional to 19,891.53, 27,447.66 and 12,335.12

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Solution

The fourth proportional to 19,891.53, 27,447.66 and 12,335.12 is: 17,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.53 : 27,447.66 = 12,335.12 : x
  2. Step 2: Convert to fraction form
    19,891.53/27,447.66 = 12,335.12/x
  3. Step 3: Cross multiply
    19,891.53x = 27,447.66 × 12,335.12
  4. Step 4: Simplify right side
    19,891.53x = 338,570,042.58
  5. Step 5: Solve for x
    x = 338,570,042.58/19,891.53
  6. Step 6: Final answer
    x = 17,020.81

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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.