Home / 30,121.44-41,553.60-19,514.64

Finding the Fourth Proportional to 30,121.44, 41,553.60 and 19,514.64

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Solution

The fourth proportional to 30,121.44, 41,553.60 and 19,514.64 is: 26,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.44 : 41,553.60 = 19,514.64 : x
  2. Step 2: Convert to fraction form
    30,121.44/41,553.60 = 19,514.64/x
  3. Step 3: Cross multiply
    30,121.44x = 41,553.60 × 19,514.64
  4. Step 4: Simplify right side
    30,121.44x = 810,903,544.70
  5. Step 5: Solve for x
    x = 810,903,544.70/30,121.44
  6. Step 6: Final answer
    x = 26,921.14

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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.