Home / 19,192.94-28,785.43-5,149.64

Finding the Fourth Proportional to 19,192.94, 28,785.43 and 5,149.64

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Solution

The fourth proportional to 19,192.94, 28,785.43 and 5,149.64 is: 7,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.94 : 28,785.43 = 5,149.64 : x
  2. Step 2: Convert to fraction form
    19,192.94/28,785.43 = 5,149.64/x
  3. Step 3: Cross multiply
    19,192.94x = 28,785.43 × 5,149.64
  4. Step 4: Simplify right side
    19,192.94x = 148,234,601.75
  5. Step 5: Solve for x
    x = 148,234,601.75/19,192.94
  6. Step 6: Final answer
    x = 7,723.39

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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.