Home / 31,694.04-43,744.72-20,940.68

Finding the Fourth Proportional to 31,694.04, 43,744.72 and 20,940.68

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Solution

The fourth proportional to 31,694.04, 43,744.72 and 20,940.68 is: 28,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,694.04 : 43,744.72 = 20,940.68 : x
  2. Step 2: Convert to fraction form
    31,694.04/43,744.72 = 20,940.68/x
  3. Step 3: Cross multiply
    31,694.04x = 43,744.72 × 20,940.68
  4. Step 4: Simplify right side
    31,694.04x = 916,044,183.21
  5. Step 5: Solve for x
    x = 916,044,183.21/31,694.04
  6. Step 6: Final answer
    x = 28,902.73

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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.