Home / 20,191.28-30,286.44-6,151.28

Finding the Fourth Proportional to 20,191.28, 30,286.44 and 6,151.28

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Solution

The fourth proportional to 20,191.28, 30,286.44 and 6,151.28 is: 9,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.28 : 30,286.44 = 6,151.28 : x
  2. Step 2: Convert to fraction form
    20,191.28/30,286.44 = 6,151.28/x
  3. Step 3: Cross multiply
    20,191.28x = 30,286.44 × 6,151.28
  4. Step 4: Simplify right side
    20,191.28x = 186,300,372.64
  5. Step 5: Solve for x
    x = 186,300,372.64/20,191.28
  6. Step 6: Final answer
    x = 9,226.77

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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.