Home / 31,255.20-43,131.60-17,107.68

Finding the Fourth Proportional to 31,255.20, 43,131.60 and 17,107.68

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Solution

The fourth proportional to 31,255.20, 43,131.60 and 17,107.68 is: 23,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.20 : 43,131.60 = 17,107.68 : x
  2. Step 2: Convert to fraction form
    31,255.20/43,131.60 = 17,107.68/x
  3. Step 3: Cross multiply
    31,255.20x = 43,131.60 × 17,107.68
  4. Step 4: Simplify right side
    31,255.20x = 737,881,610.69
  5. Step 5: Solve for x
    x = 737,881,610.69/31,255.20
  6. Step 6: Final answer
    x = 23,608.28

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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.