Home / 30,149.21-41,584.21-19,928.38

Finding the Fourth Proportional to 30,149.21, 41,584.21 and 19,928.38

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Solution

The fourth proportional to 30,149.21, 41,584.21 and 19,928.38 is: 27,486.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.21 : 41,584.21 = 19,928.38 : x
  2. Step 2: Convert to fraction form
    30,149.21/41,584.21 = 19,928.38/x
  3. Step 3: Cross multiply
    30,149.21x = 41,584.21 × 19,928.38
  4. Step 4: Simplify right side
    30,149.21x = 828,705,919.12
  5. Step 5: Solve for x
    x = 828,705,919.12/30,149.21
  6. Step 6: Final answer
    x = 27,486.82

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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.