Home / 19,940.87-27,517.38-10,986.92

Finding the Fourth Proportional to 19,940.87, 27,517.38 and 10,986.92

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Solution

The fourth proportional to 19,940.87, 27,517.38 and 10,986.92 is: 15,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.87 : 27,517.38 = 10,986.92 : x
  2. Step 2: Convert to fraction form
    19,940.87/27,517.38 = 10,986.92/x
  3. Step 3: Cross multiply
    19,940.87x = 27,517.38 × 10,986.92
  4. Step 4: Simplify right side
    19,940.87x = 302,331,115.08
  5. Step 5: Solve for x
    x = 302,331,115.08/19,940.87
  6. Step 6: Final answer
    x = 15,161.38

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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.