Home / 30,321.14-45,405.75-19,194.26

Finding the Fourth Proportional to 30,321.14, 45,405.75 and 19,194.26

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Solution

The fourth proportional to 30,321.14, 45,405.75 and 19,194.26 is: 28,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.14 : 45,405.75 = 19,194.26 : x
  2. Step 2: Convert to fraction form
    30,321.14/45,405.75 = 19,194.26/x
  3. Step 3: Cross multiply
    30,321.14x = 45,405.75 × 19,194.26
  4. Step 4: Simplify right side
    30,321.14x = 871,529,771.00
  5. Step 5: Solve for x
    x = 871,529,771.00/30,321.14
  6. Step 6: Final answer
    x = 28,743.30

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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.