Home / 31,277.26-43,161.01-17,129.80

Finding the Fourth Proportional to 31,277.26, 43,161.01 and 17,129.80

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Solution

The fourth proportional to 31,277.26, 43,161.01 and 17,129.80 is: 23,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.26 : 43,161.01 = 17,129.80 : x
  2. Step 2: Convert to fraction form
    31,277.26/43,161.01 = 17,129.80/x
  3. Step 3: Cross multiply
    31,277.26x = 43,161.01 × 17,129.80
  4. Step 4: Simplify right side
    31,277.26x = 739,339,469.10
  5. Step 5: Solve for x
    x = 739,339,469.10/31,277.26
  6. Step 6: Final answer
    x = 23,638.24

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Double scale
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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.