Home / 31,825.37-43,914.12-18,394.03

Finding the Fourth Proportional to 31,825.37, 43,914.12 and 18,394.03

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Solution

The fourth proportional to 31,825.37, 43,914.12 and 18,394.03 is: 25,380.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,825.37 : 43,914.12 = 18,394.03 : x
  2. Step 2: Convert to fraction form
    31,825.37/43,914.12 = 18,394.03/x
  3. Step 3: Cross multiply
    31,825.37x = 43,914.12 × 18,394.03
  4. Step 4: Simplify right side
    31,825.37x = 807,757,640.70
  5. Step 5: Solve for x
    x = 807,757,640.70/31,825.37
  6. Step 6: Final answer
    x = 25,380.93

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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.