Home / 19,972.05-27,561.53-11,019.56

Finding the Fourth Proportional to 19,972.05, 27,561.53 and 11,019.56

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Solution

The fourth proportional to 19,972.05, 27,561.53 and 11,019.56 is: 15,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.05 : 27,561.53 = 11,019.56 : x
  2. Step 2: Convert to fraction form
    19,972.05/27,561.53 = 11,019.56/x
  3. Step 3: Cross multiply
    19,972.05x = 27,561.53 × 11,019.56
  4. Step 4: Simplify right side
    19,972.05x = 303,715,740.62
  5. Step 5: Solve for x
    x = 303,715,740.62/19,972.05
  6. Step 6: Final answer
    x = 15,207.04

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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.