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Finding the Fourth Proportional to 20,195.58, 30,296.86 and 6,867.16

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Solution

The fourth proportional to 20,195.58, 30,296.86 and 6,867.16 is: 10,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.58 : 30,296.86 = 6,867.16 : x
  2. Step 2: Convert to fraction form
    20,195.58/30,296.86 = 6,867.16/x
  3. Step 3: Cross multiply
    20,195.58x = 30,296.86 × 6,867.16
  4. Step 4: Simplify right side
    20,195.58x = 208,053,385.12
  5. Step 5: Solve for x
    x = 208,053,385.12/20,195.58
  6. Step 6: Final answer
    x = 10,301.93

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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.