Home / 31,512.43-43,486.60-17,172.39

Finding the Fourth Proportional to 31,512.43, 43,486.60 and 17,172.39

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Solution

The fourth proportional to 31,512.43, 43,486.60 and 17,172.39 is: 23,697.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.43 : 43,486.60 = 17,172.39 : x
  2. Step 2: Convert to fraction form
    31,512.43/43,486.60 = 17,172.39/x
  3. Step 3: Cross multiply
    31,512.43x = 43,486.60 × 17,172.39
  4. Step 4: Simplify right side
    31,512.43x = 746,768,551.68
  5. Step 5: Solve for x
    x = 746,768,551.68/31,512.43
  6. Step 6: Final answer
    x = 23,697.59

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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.