Home / 19,039.20-28,536.72-11,254.56

Finding the Fourth Proportional to 19,039.20, 28,536.72 and 11,254.56

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Solution

The fourth proportional to 19,039.20, 28,536.72 and 11,254.56 is: 16,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.20 : 28,536.72 = 11,254.56 : x
  2. Step 2: Convert to fraction form
    19,039.20/28,536.72 = 11,254.56/x
  3. Step 3: Cross multiply
    19,039.20x = 28,536.72 × 11,254.56
  4. Step 4: Simplify right side
    19,039.20x = 321,168,227.44
  5. Step 5: Solve for x
    x = 321,168,227.44/19,039.20
  6. Step 6: Final answer
    x = 16,868.79

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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.