Home / 20,129.17-30,195.86-6,803.73

Finding the Fourth Proportional to 20,129.17, 30,195.86 and 6,803.73

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Solution

The fourth proportional to 20,129.17, 30,195.86 and 6,803.73 is: 10,206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.17 : 30,195.86 = 6,803.73 : x
  2. Step 2: Convert to fraction form
    20,129.17/30,195.86 = 6,803.73/x
  3. Step 3: Cross multiply
    20,129.17x = 30,195.86 × 6,803.73
  4. Step 4: Simplify right side
    20,129.17x = 205,444,629.33
  5. Step 5: Solve for x
    x = 205,444,629.33/20,129.17
  6. Step 6: Final answer
    x = 10,206.31

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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.