Home / 21,067.97-31,574.68-8,573.45

Finding the Fourth Proportional to 21,067.97, 31,574.68 and 8,573.45

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Solution

The fourth proportional to 21,067.97, 31,574.68 and 8,573.45 is: 12,849.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.97 : 31,574.68 = 8,573.45 : x
  2. Step 2: Convert to fraction form
    21,067.97/31,574.68 = 8,573.45/x
  3. Step 3: Cross multiply
    21,067.97x = 31,574.68 × 8,573.45
  4. Step 4: Simplify right side
    21,067.97x = 270,703,760.94
  5. Step 5: Solve for x
    x = 270,703,760.94/21,067.97
  6. Step 6: Final answer
    x = 12,849.07

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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.