Home / 31,495.61-43,447.39-18,739.73

Finding the Fourth Proportional to 31,495.61, 43,447.39 and 18,739.73

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Solution

The fourth proportional to 31,495.61, 43,447.39 and 18,739.73 is: 25,850.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,495.61 : 43,447.39 = 18,739.73 : x
  2. Step 2: Convert to fraction form
    31,495.61/43,447.39 = 18,739.73/x
  3. Step 3: Cross multiply
    31,495.61x = 43,447.39 × 18,739.73
  4. Step 4: Simplify right side
    31,495.61x = 814,192,093.72
  5. Step 5: Solve for x
    x = 814,192,093.72/31,495.61
  6. Step 6: Final answer
    x = 25,850.97

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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.