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Finding the Fourth Proportional to 36,352.80, 50,163.84 and 20,439

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Solution

The fourth proportional to 36,352.80, 50,163.84 and 20,439 is: 28,204.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,352.80 : 50,163.84 = 20,439 : x
  2. Step 2: Convert to fraction form
    36,352.80/50,163.84 = 20,439/x
  3. Step 3: Cross multiply
    36,352.80x = 50,163.84 × 20,439
  4. Step 4: Simplify right side
    36,352.80x = 1,025,298,725.76
  5. Step 5: Solve for x
    x = 1,025,298,725.76/36,352.80
  6. Step 6: Final answer
    x = 28,204.12

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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.