Home / 19,943.89-27,522.56-10,991.36

Finding the Fourth Proportional to 19,943.89, 27,522.56 and 10,991.36

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Solution

The fourth proportional to 19,943.89, 27,522.56 and 10,991.36 is: 15,168.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.89 : 27,522.56 = 10,991.36 : x
  2. Step 2: Convert to fraction form
    19,943.89/27,522.56 = 10,991.36/x
  3. Step 3: Cross multiply
    19,943.89x = 27,522.56 × 10,991.36
  4. Step 4: Simplify right side
    19,943.89x = 302,510,310.12
  5. Step 5: Solve for x
    x = 302,510,310.12/19,943.89
  6. Step 6: Final answer
    x = 15,168.07

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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.