Home / 20,433.57-30,648.98-7,286.05

Finding the Fourth Proportional to 20,433.57, 30,648.98 and 7,286.05

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Solution

The fourth proportional to 20,433.57, 30,648.98 and 7,286.05 is: 10,928.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.57 : 30,648.98 = 7,286.05 : x
  2. Step 2: Convert to fraction form
    20,433.57/30,648.98 = 7,286.05/x
  3. Step 3: Cross multiply
    20,433.57x = 30,648.98 × 7,286.05
  4. Step 4: Simplify right side
    20,433.57x = 223,310,057.26
  5. Step 5: Solve for x
    x = 223,310,057.26/20,433.57
  6. Step 6: Final answer
    x = 10,928.59

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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.