Home / 31,285.43-43,174.97-17,138.28

Finding the Fourth Proportional to 31,285.43, 43,174.97 and 17,138.28

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Solution

The fourth proportional to 31,285.43, 43,174.97 and 17,138.28 is: 23,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.43 : 43,174.97 = 17,138.28 : x
  2. Step 2: Convert to fraction form
    31,285.43/43,174.97 = 17,138.28/x
  3. Step 3: Cross multiply
    31,285.43x = 43,174.97 × 17,138.28
  4. Step 4: Simplify right side
    31,285.43x = 739,944,605.79
  5. Step 5: Solve for x
    x = 739,944,605.79/31,285.43
  6. Step 6: Final answer
    x = 23,651.41

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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.