Home / 31,351.38-43,265.58-17,204.22

Finding the Fourth Proportional to 31,351.38, 43,265.58 and 17,204.22

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Solution

The fourth proportional to 31,351.38, 43,265.58 and 17,204.22 is: 23,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,351.38 : 43,265.58 = 17,204.22 : x
  2. Step 2: Convert to fraction form
    31,351.38/43,265.58 = 17,204.22/x
  3. Step 3: Cross multiply
    31,351.38x = 43,265.58 × 17,204.22
  4. Step 4: Simplify right side
    31,351.38x = 744,350,556.75
  5. Step 5: Solve for x
    x = 744,350,556.75/31,351.38
  6. Step 6: Final answer
    x = 23,742.19

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Half scale
Find fourth proportional to 62,702.76, 86,531.16 and 34,408.44
Double scale
Find fourth proportional to 31,352.38, 43,266.96 and 17,205.22
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.