Home / 20,157.49-30,236.20-5,366.41

Finding the Fourth Proportional to 20,157.49, 30,236.20 and 5,366.41

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Solution

The fourth proportional to 20,157.49, 30,236.20 and 5,366.41 is: 8,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.49 : 30,236.20 = 5,366.41 : x
  2. Step 2: Convert to fraction form
    20,157.49/30,236.20 = 5,366.41/x
  3. Step 3: Cross multiply
    20,157.49x = 30,236.20 × 5,366.41
  4. Step 4: Simplify right side
    20,157.49x = 162,259,846.04
  5. Step 5: Solve for x
    x = 162,259,846.04/20,157.49
  6. Step 6: Final answer
    x = 8,049.61

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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.