Home / 30,189.96-41,660.19-16,761.20

Finding the Fourth Proportional to 30,189.96, 41,660.19 and 16,761.20

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Solution

The fourth proportional to 30,189.96, 41,660.19 and 16,761.20 is: 23,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.96 : 41,660.19 = 16,761.20 : x
  2. Step 2: Convert to fraction form
    30,189.96/41,660.19 = 16,761.20/x
  3. Step 3: Cross multiply
    30,189.96x = 41,660.19 × 16,761.20
  4. Step 4: Simplify right side
    30,189.96x = 698,274,568.33
  5. Step 5: Solve for x
    x = 698,274,568.33/30,189.96
  6. Step 6: Final answer
    x = 23,129.36

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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.