Home / 36,318.38-50,124.04-20,402.85

Finding the Fourth Proportional to 36,318.38, 50,124.04 and 20,402.85

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Solution

The fourth proportional to 36,318.38, 50,124.04 and 20,402.85 is: 28,158.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,318.38 : 50,124.04 = 20,402.85 : x
  2. Step 2: Convert to fraction form
    36,318.38/50,124.04 = 20,402.85/x
  3. Step 3: Cross multiply
    36,318.38x = 50,124.04 × 20,402.85
  4. Step 4: Simplify right side
    36,318.38x = 1,022,673,218.51
  5. Step 5: Solve for x
    x = 1,022,673,218.51/36,318.38
  6. Step 6: Final answer
    x = 28,158.56

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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.