Home / 31,454.29-43,407.96-18,028.09

Finding the Fourth Proportional to 31,454.29, 43,407.96 and 18,028.09

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Solution

The fourth proportional to 31,454.29, 43,407.96 and 18,028.09 is: 24,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,454.29 : 43,407.96 = 18,028.09 : x
  2. Step 2: Convert to fraction form
    31,454.29/43,407.96 = 18,028.09/x
  3. Step 3: Cross multiply
    31,454.29x = 43,407.96 × 18,028.09
  4. Step 4: Simplify right side
    31,454.29x = 782,562,609.60
  5. Step 5: Solve for x
    x = 782,562,609.60/31,454.29
  6. Step 6: Final answer
    x = 24,879.36

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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.