Home / 19,039.25-28,517.29-7,912.21

Finding the Fourth Proportional to 19,039.25, 28,517.29 and 7,912.21

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Solution

The fourth proportional to 19,039.25, 28,517.29 and 7,912.21 is: 11,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.25 : 28,517.29 = 7,912.21 : x
  2. Step 2: Convert to fraction form
    19,039.25/28,517.29 = 7,912.21/x
  3. Step 3: Cross multiply
    19,039.25x = 28,517.29 × 7,912.21
  4. Step 4: Simplify right side
    19,039.25x = 225,634,691.56
  5. Step 5: Solve for x
    x = 225,634,691.56/19,039.25
  6. Step 6: Final answer
    x = 11,851.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.