Home / 31,979.58-47,969.46-11,198.22

Finding the Fourth Proportional to 31,979.58, 47,969.46 and 11,198.22

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Solution

The fourth proportional to 31,979.58, 47,969.46 and 11,198.22 is: 16,797.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.58 : 47,969.46 = 11,198.22 : x
  2. Step 2: Convert to fraction form
    31,979.58/47,969.46 = 11,198.22/x
  3. Step 3: Cross multiply
    31,979.58x = 47,969.46 × 11,198.22
  4. Step 4: Simplify right side
    31,979.58x = 537,172,566.36
  5. Step 5: Solve for x
    x = 537,172,566.36/31,979.58
  6. Step 6: Final answer
    x = 16,797.36

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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.