Home / 31,619.87-43,634.90-17,279.39

Finding the Fourth Proportional to 31,619.87, 43,634.90 and 17,279.39

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Solution

The fourth proportional to 31,619.87, 43,634.90 and 17,279.39 is: 23,845.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.87 : 43,634.90 = 17,279.39 : x
  2. Step 2: Convert to fraction form
    31,619.87/43,634.90 = 17,279.39/x
  3. Step 3: Cross multiply
    31,619.87x = 43,634.90 × 17,279.39
  4. Step 4: Simplify right side
    31,619.87x = 753,984,150.14
  5. Step 5: Solve for x
    x = 753,984,150.14/31,619.87
  6. Step 6: Final answer
    x = 23,845.27

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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.