Home / 31,608.39-43,620.44-18,868.97

Finding the Fourth Proportional to 31,608.39, 43,620.44 and 18,868.97

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Solution

The fourth proportional to 31,608.39, 43,620.44 and 18,868.97 is: 26,039.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,608.39 : 43,620.44 = 18,868.97 : x
  2. Step 2: Convert to fraction form
    31,608.39/43,620.44 = 18,868.97/x
  3. Step 3: Cross multiply
    31,608.39x = 43,620.44 × 18,868.97
  4. Step 4: Simplify right side
    31,608.39x = 823,072,695.64
  5. Step 5: Solve for x
    x = 823,072,695.64/31,608.39
  6. Step 6: Final answer
    x = 26,039.69

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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.