Home / 31,398.82-43,330.20-17,058.54

Finding the Fourth Proportional to 31,398.82, 43,330.20 and 17,058.54

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Solution

The fourth proportional to 31,398.82, 43,330.20 and 17,058.54 is: 23,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.82 : 43,330.20 = 17,058.54 : x
  2. Step 2: Convert to fraction form
    31,398.82/43,330.20 = 17,058.54/x
  3. Step 3: Cross multiply
    31,398.82x = 43,330.20 × 17,058.54
  4. Step 4: Simplify right side
    31,398.82x = 739,149,949.91
  5. Step 5: Solve for x
    x = 739,149,949.91/31,398.82
  6. Step 6: Final answer
    x = 23,540.69

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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.