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Finding the Fourth Proportional to 36,458.60, 50,311.96 and 21,147.86

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Solution

The fourth proportional to 36,458.60, 50,311.96 and 21,147.86 is: 29,183.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,458.60 : 50,311.96 = 21,147.86 : x
  2. Step 2: Convert to fraction form
    36,458.60/50,311.96 = 21,147.86/x
  3. Step 3: Cross multiply
    36,458.60x = 50,311.96 × 21,147.86
  4. Step 4: Simplify right side
    36,458.60x = 1,063,989,981.98
  5. Step 5: Solve for x
    x = 1,063,989,981.98/36,458.60
  6. Step 6: Final answer
    x = 29,183.51

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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.