Home / 19,981.05-27,573.30-11,028.39

Finding the Fourth Proportional to 19,981.05, 27,573.30 and 11,028.39

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Solution

The fourth proportional to 19,981.05, 27,573.30 and 11,028.39 is: 15,218.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.05 : 27,573.30 = 11,028.39 : x
  2. Step 2: Convert to fraction form
    19,981.05/27,573.30 = 11,028.39/x
  3. Step 3: Cross multiply
    19,981.05x = 27,573.30 × 11,028.39
  4. Step 4: Simplify right side
    19,981.05x = 304,089,105.99
  5. Step 5: Solve for x
    x = 304,089,105.99/19,981.05
  6. Step 6: Final answer
    x = 15,218.88

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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.