Home / 31,175.90-43,012.07-17,743.79

Finding the Fourth Proportional to 31,175.90, 43,012.07 and 17,743.79

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Solution

The fourth proportional to 31,175.90, 43,012.07 and 17,743.79 is: 24,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,175.90 : 43,012.07 = 17,743.79 : x
  2. Step 2: Convert to fraction form
    31,175.90/43,012.07 = 17,743.79/x
  3. Step 3: Cross multiply
    31,175.90x = 43,012.07 × 17,743.79
  4. Step 4: Simplify right side
    31,175.90x = 763,197,137.55
  5. Step 5: Solve for x
    x = 763,197,137.55/31,175.90
  6. Step 6: Final answer
    x = 24,480.36

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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.