Home / 20,191.49-30,286.96-7,043.81

Finding the Fourth Proportional to 20,191.49, 30,286.96 and 7,043.81

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Solution

The fourth proportional to 20,191.49, 30,286.96 and 7,043.81 is: 10,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.49 : 30,286.96 = 7,043.81 : x
  2. Step 2: Convert to fraction form
    20,191.49/30,286.96 = 7,043.81/x
  3. Step 3: Cross multiply
    20,191.49x = 30,286.96 × 7,043.81
  4. Step 4: Simplify right side
    20,191.49x = 213,335,591.72
  5. Step 5: Solve for x
    x = 213,335,591.72/20,191.49
  6. Step 6: Final answer
    x = 10,565.62

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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.