Home / 31,662.03-43,694.33-18,231.12

Finding the Fourth Proportional to 31,662.03, 43,694.33 and 18,231.12

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Solution

The fourth proportional to 31,662.03, 43,694.33 and 18,231.12 is: 25,159.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,662.03 : 43,694.33 = 18,231.12 : x
  2. Step 2: Convert to fraction form
    31,662.03/43,694.33 = 18,231.12/x
  3. Step 3: Cross multiply
    31,662.03x = 43,694.33 × 18,231.12
  4. Step 4: Simplify right side
    31,662.03x = 796,596,573.55
  5. Step 5: Solve for x
    x = 796,596,573.55/31,662.03
  6. Step 6: Final answer
    x = 25,159.37

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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.