Home / 31,215.78-46,766.97-18,040.32

Finding the Fourth Proportional to 31,215.78, 46,766.97 and 18,040.32

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Solution

The fourth proportional to 31,215.78, 46,766.97 and 18,040.32 is: 27,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.78 : 46,766.97 = 18,040.32 : x
  2. Step 2: Convert to fraction form
    31,215.78/46,766.97 = 18,040.32/x
  3. Step 3: Cross multiply
    31,215.78x = 46,766.97 × 18,040.32
  4. Step 4: Simplify right side
    31,215.78x = 843,691,104.23
  5. Step 5: Solve for x
    x = 843,691,104.23/31,215.78
  6. Step 6: Final answer
    x = 27,027.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.