Home / 20,198.14-30,296.76-5,407.06

Finding the Fourth Proportional to 20,198.14, 30,296.76 and 5,407.06

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Solution

The fourth proportional to 20,198.14, 30,296.76 and 5,407.06 is: 8,110.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.14 : 30,296.76 = 5,407.06 : x
  2. Step 2: Convert to fraction form
    20,198.14/30,296.76 = 5,407.06/x
  3. Step 3: Cross multiply
    20,198.14x = 30,296.76 × 5,407.06
  4. Step 4: Simplify right side
    20,198.14x = 163,816,399.13
  5. Step 5: Solve for x
    x = 163,816,399.13/20,198.14
  6. Step 6: Final answer
    x = 8,110.47

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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.