Home / 20,137.28-30,202.40-5,346.96

Finding the Fourth Proportional to 20,137.28, 30,202.40 and 5,346.96

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Solution

The fourth proportional to 20,137.28, 30,202.40 and 5,346.96 is: 8,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.28 : 30,202.40 = 5,346.96 : x
  2. Step 2: Convert to fraction form
    20,137.28/30,202.40 = 5,346.96/x
  3. Step 3: Cross multiply
    20,137.28x = 30,202.40 × 5,346.96
  4. Step 4: Simplify right side
    20,137.28x = 161,491,024.70
  5. Step 5: Solve for x
    x = 161,491,024.70/20,137.28
  6. Step 6: Final answer
    x = 8,019.51

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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.