Home / 31,879.12-43,992.48-17,731.04

Finding the Fourth Proportional to 31,879.12, 43,992.48 and 17,731.04

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Solution

The fourth proportional to 31,879.12, 43,992.48 and 17,731.04 is: 24,468.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.12 : 43,992.48 = 17,731.04 : x
  2. Step 2: Convert to fraction form
    31,879.12/43,992.48 = 17,731.04/x
  3. Step 3: Cross multiply
    31,879.12x = 43,992.48 × 17,731.04
  4. Step 4: Simplify right side
    31,879.12x = 780,032,422.58
  5. Step 5: Solve for x
    x = 780,032,422.58/31,879.12
  6. Step 6: Final answer
    x = 24,468.44

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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.