Home / 20,189.98-30,286.51-6,151.20

Finding the Fourth Proportional to 20,189.98, 30,286.51 and 6,151.20

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Solution

The fourth proportional to 20,189.98, 30,286.51 and 6,151.20 is: 9,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.98 : 30,286.51 = 6,151.20 : x
  2. Step 2: Convert to fraction form
    20,189.98/30,286.51 = 6,151.20/x
  3. Step 3: Cross multiply
    20,189.98x = 30,286.51 × 6,151.20
  4. Step 4: Simplify right side
    20,189.98x = 186,298,380.31
  5. Step 5: Solve for x
    x = 186,298,380.31/20,189.98
  6. Step 6: Final answer
    x = 9,227.27

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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.