Home / 30,190.57-41,661.11-16,761.02

Finding the Fourth Proportional to 30,190.57, 41,661.11 and 16,761.02

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Solution

The fourth proportional to 30,190.57, 41,661.11 and 16,761.02 is: 23,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.57 : 41,661.11 = 16,761.02 : x
  2. Step 2: Convert to fraction form
    30,190.57/41,661.11 = 16,761.02/x
  3. Step 3: Cross multiply
    30,190.57x = 41,661.11 × 16,761.02
  4. Step 4: Simplify right side
    30,190.57x = 698,282,843.99
  5. Step 5: Solve for x
    x = 698,282,843.99/30,190.57
  6. Step 6: Final answer
    x = 23,129.17

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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.