Home / 31,293.07-43,183.43-17,145.61

Finding the Fourth Proportional to 31,293.07, 43,183.43 and 17,145.61

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Solution

The fourth proportional to 31,293.07, 43,183.43 and 17,145.61 is: 23,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,293.07 : 43,183.43 = 17,145.61 : x
  2. Step 2: Convert to fraction form
    31,293.07/43,183.43 = 17,145.61/x
  3. Step 3: Cross multiply
    31,293.07x = 43,183.43 × 17,145.61
  4. Step 4: Simplify right side
    31,293.07x = 740,406,119.85
  5. Step 5: Solve for x
    x = 740,406,119.85/31,293.07
  6. Step 6: Final answer
    x = 23,660.39

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Half scale
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Double scale
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Similar ratio
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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.