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Finding the Fourth Proportional to 36,551.25, 50,441.81 and 20,419.83

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Solution

The fourth proportional to 36,551.25, 50,441.81 and 20,419.83 is: 28,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,551.25 : 50,441.81 = 20,419.83 : x
  2. Step 2: Convert to fraction form
    36,551.25/50,441.81 = 20,419.83/x
  3. Step 3: Cross multiply
    36,551.25x = 50,441.81 × 20,419.83
  4. Step 4: Simplify right side
    36,551.25x = 1,030,013,082.99
  5. Step 5: Solve for x
    x = 1,030,013,082.99/36,551.25
  6. Step 6: Final answer
    x = 28,179.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.