Home / 20,198.26-30,296.81-5,407.18

Finding the Fourth Proportional to 20,198.26, 30,296.81 and 5,407.18

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Solution

The fourth proportional to 20,198.26, 30,296.81 and 5,407.18 is: 8,110.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.26 : 30,296.81 = 5,407.18 : x
  2. Step 2: Convert to fraction form
    20,198.26/30,296.81 = 5,407.18/x
  3. Step 3: Cross multiply
    20,198.26x = 30,296.81 × 5,407.18
  4. Step 4: Simplify right side
    20,198.26x = 163,820,153.61
  5. Step 5: Solve for x
    x = 163,820,153.61/20,198.26
  6. Step 6: Final answer
    x = 8,110.61

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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.