Home / 31,291.34-43,183.08-17,145.09

Finding the Fourth Proportional to 31,291.34, 43,183.08 and 17,145.09

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Solution

The fourth proportional to 31,291.34, 43,183.08 and 17,145.09 is: 23,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,291.34 : 43,183.08 = 17,145.09 : x
  2. Step 2: Convert to fraction form
    31,291.34/43,183.08 = 17,145.09/x
  3. Step 3: Cross multiply
    31,291.34x = 43,183.08 × 17,145.09
  4. Step 4: Simplify right side
    31,291.34x = 740,377,793.08
  5. Step 5: Solve for x
    x = 740,377,793.08/31,291.34
  6. Step 6: Final answer
    x = 23,660.79

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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.