Home / 36,319.70-50,120.87-20,403.80

Finding the Fourth Proportional to 36,319.70, 50,120.87 and 20,403.80

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Solution

The fourth proportional to 36,319.70, 50,120.87 and 20,403.80 is: 28,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,319.70 : 50,120.87 = 20,403.80 : x
  2. Step 2: Convert to fraction form
    36,319.70/50,120.87 = 20,403.80/x
  3. Step 3: Cross multiply
    36,319.70x = 50,120.87 × 20,403.80
  4. Step 4: Simplify right side
    36,319.70x = 1,022,655,854.68
  5. Step 5: Solve for x
    x = 1,022,655,854.68/36,319.70
  6. Step 6: Final answer
    x = 28,157.06

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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.