Home / 31,725.43-43,781.12-17,578.51

Finding the Fourth Proportional to 31,725.43, 43,781.12 and 17,578.51

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Solution

The fourth proportional to 31,725.43, 43,781.12 and 17,578.51 is: 24,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725.43 : 43,781.12 = 17,578.51 : x
  2. Step 2: Convert to fraction form
    31,725.43/43,781.12 = 17,578.51/x
  3. Step 3: Cross multiply
    31,725.43x = 43,781.12 × 17,578.51
  4. Step 4: Simplify right side
    31,725.43x = 769,606,855.73
  5. Step 5: Solve for x
    x = 769,606,855.73/31,725.43
  6. Step 6: Final answer
    x = 24,258.36

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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.