Home / 31,608.22-43,628.03-19,664.43

Finding the Fourth Proportional to 31,608.22, 43,628.03 and 19,664.43

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Solution

The fourth proportional to 31,608.22, 43,628.03 and 19,664.43 is: 27,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,608.22 : 43,628.03 = 19,664.43 : x
  2. Step 2: Convert to fraction form
    31,608.22/43,628.03 = 19,664.43/x
  3. Step 3: Cross multiply
    31,608.22x = 43,628.03 × 19,664.43
  4. Step 4: Simplify right side
    31,608.22x = 857,920,341.97
  5. Step 5: Solve for x
    x = 857,920,341.97/31,608.22
  6. Step 6: Final answer
    x = 27,142.32

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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.