Home / 36,311.72-50,112.86-20,397.11

Finding the Fourth Proportional to 36,311.72, 50,112.86 and 20,397.11

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Solution

The fourth proportional to 36,311.72, 50,112.86 and 20,397.11 is: 28,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,311.72 : 50,112.86 = 20,397.11 : x
  2. Step 2: Convert to fraction form
    36,311.72/50,112.86 = 20,397.11/x
  3. Step 3: Cross multiply
    36,311.72x = 50,112.86 × 20,397.11
  4. Step 4: Simplify right side
    36,311.72x = 1,022,157,165.28
  5. Step 5: Solve for x
    x = 1,022,157,165.28/36,311.72
  6. Step 6: Final answer
    x = 28,149.51

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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.