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Finding the Fourth Proportional to 36,679.86, 50,617.80 and 20,764.17

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Solution

The fourth proportional to 36,679.86, 50,617.80 and 20,764.17 is: 28,654.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679.86 : 50,617.80 = 20,764.17 : x
  2. Step 2: Convert to fraction form
    36,679.86/50,617.80 = 20,764.17/x
  3. Step 3: Cross multiply
    36,679.86x = 50,617.80 × 20,764.17
  4. Step 4: Simplify right side
    36,679.86x = 1,051,036,604.23
  5. Step 5: Solve for x
    x = 1,051,036,604.23/36,679.86
  6. Step 6: Final answer
    x = 28,654.32

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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.