Home / 31,293.38-43,185.87-17,147.13

Finding the Fourth Proportional to 31,293.38, 43,185.87 and 17,147.13

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Solution

The fourth proportional to 31,293.38, 43,185.87 and 17,147.13 is: 23,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,293.38 : 43,185.87 = 17,147.13 : x
  2. Step 2: Convert to fraction form
    31,293.38/43,185.87 = 17,147.13/x
  3. Step 3: Cross multiply
    31,293.38x = 43,185.87 × 17,147.13
  4. Step 4: Simplify right side
    31,293.38x = 740,513,727.05
  5. Step 5: Solve for x
    x = 740,513,727.05/31,293.38
  6. Step 6: Final answer
    x = 23,663.59

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Half scale
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Double scale
Find fourth proportional to 31,294.38, 43,187.25 and 17,148.13
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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.