Home / 19,943.88-27,522.39-10,991.22

Finding the Fourth Proportional to 19,943.88, 27,522.39 and 10,991.22

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Solution

The fourth proportional to 19,943.88, 27,522.39 and 10,991.22 is: 15,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.88 : 27,522.39 = 10,991.22 : x
  2. Step 2: Convert to fraction form
    19,943.88/27,522.39 = 10,991.22/x
  3. Step 3: Cross multiply
    19,943.88x = 27,522.39 × 10,991.22
  4. Step 4: Simplify right side
    19,943.88x = 302,504,643.42
  5. Step 5: Solve for x
    x = 302,504,643.42/19,943.88
  6. Step 6: Final answer
    x = 15,167.79

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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.