Home / 34,213.44-47,218-20,786.04

Finding the Fourth Proportional to 34,213.44, 47,218 and 20,786.04

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Solution

The fourth proportional to 34,213.44, 47,218 and 20,786.04 is: 28,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,213.44 : 47,218 = 20,786.04 : x
  2. Step 2: Convert to fraction form
    34,213.44/47,218 = 20,786.04/x
  3. Step 3: Cross multiply
    34,213.44x = 47,218 × 20,786.04
  4. Step 4: Simplify right side
    34,213.44x = 981,475,236.72
  5. Step 5: Solve for x
    x = 981,475,236.72/34,213.44
  6. Step 6: Final answer
    x = 28,686.83

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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.