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Finding the Fourth Proportional to 36,630.20, 50,550.64 and 20,717

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Solution

The fourth proportional to 36,630.20, 50,550.64 and 20,717 is: 28,590.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,630.20 : 50,550.64 = 20,717 : x
  2. Step 2: Convert to fraction form
    36,630.20/50,550.64 = 20,717/x
  3. Step 3: Cross multiply
    36,630.20x = 50,550.64 × 20,717
  4. Step 4: Simplify right side
    36,630.20x = 1,047,257,608.88
  5. Step 5: Solve for x
    x = 1,047,257,608.88/36,630.20
  6. Step 6: Final answer
    x = 28,590.01

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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.