Home / 20,190.82-30,287.79-6,152.05

Finding the Fourth Proportional to 20,190.82, 30,287.79 and 6,152.05

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Solution

The fourth proportional to 20,190.82, 30,287.79 and 6,152.05 is: 9,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.82 : 30,287.79 = 6,152.05 : x
  2. Step 2: Convert to fraction form
    20,190.82/30,287.79 = 6,152.05/x
  3. Step 3: Cross multiply
    20,190.82x = 30,287.79 × 6,152.05
  4. Step 4: Simplify right side
    20,190.82x = 186,331,998.47
  5. Step 5: Solve for x
    x = 186,331,998.47/20,190.82
  6. Step 6: Final answer
    x = 9,228.55

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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.