Home / 36,942.72-50,977.92-20,811.36

Finding the Fourth Proportional to 36,942.72, 50,977.92 and 20,811.36

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Solution

The fourth proportional to 36,942.72, 50,977.92 and 20,811.36 is: 28,717.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,942.72 : 50,977.92 = 20,811.36 : x
  2. Step 2: Convert to fraction form
    36,942.72/50,977.92 = 20,811.36/x
  3. Step 3: Cross multiply
    36,942.72x = 50,977.92 × 20,811.36
  4. Step 4: Simplify right side
    36,942.72x = 1,060,919,845.17
  5. Step 5: Solve for x
    x = 1,060,919,845.17/36,942.72
  6. Step 6: Final answer
    x = 28,717.97

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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.