Home / 20,190.72-30,287.62-6,151.94

Finding the Fourth Proportional to 20,190.72, 30,287.62 and 6,151.94

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Solution

The fourth proportional to 20,190.72, 30,287.62 and 6,151.94 is: 9,228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.72 : 30,287.62 = 6,151.94 : x
  2. Step 2: Convert to fraction form
    20,190.72/30,287.62 = 6,151.94/x
  3. Step 3: Cross multiply
    20,190.72x = 30,287.62 × 6,151.94
  4. Step 4: Simplify right side
    20,190.72x = 186,327,665.94
  5. Step 5: Solve for x
    x = 186,327,665.94/20,190.72
  6. Step 6: Final answer
    x = 9,228.38

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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.