Home / 31,805.56-43,893.66-18,379.27

Finding the Fourth Proportional to 31,805.56, 43,893.66 and 18,379.27

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Solution

The fourth proportional to 31,805.56, 43,893.66 and 18,379.27 is: 25,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,805.56 : 43,893.66 = 18,379.27 : x
  2. Step 2: Convert to fraction form
    31,805.56/43,893.66 = 18,379.27/x
  3. Step 3: Cross multiply
    31,805.56x = 43,893.66 × 18,379.27
  4. Step 4: Simplify right side
    31,805.56x = 806,733,428.43
  5. Step 5: Solve for x
    x = 806,733,428.43/31,805.56
  6. Step 6: Final answer
    x = 25,364.54

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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.