Home / 31,656.43-43,694.49-19,712.71

Finding the Fourth Proportional to 31,656.43, 43,694.49 and 19,712.71

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Solution

The fourth proportional to 31,656.43, 43,694.49 and 19,712.71 is: 27,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,656.43 : 43,694.49 = 19,712.71 : x
  2. Step 2: Convert to fraction form
    31,656.43/43,694.49 = 19,712.71/x
  3. Step 3: Cross multiply
    31,656.43x = 43,694.49 × 19,712.71
  4. Step 4: Simplify right side
    31,656.43x = 861,336,809.97
  5. Step 5: Solve for x
    x = 861,336,809.97/31,656.43
  6. Step 6: Final answer
    x = 27,208.91

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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.