Home / 31,716.20-43,679.58-31,027.43

Finding the Fourth Proportional to 31,716.20, 43,679.58 and 31,027.43

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Solution

The fourth proportional to 31,716.20, 43,679.58 and 31,027.43 is: 42,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716.20 : 43,679.58 = 31,027.43 : x
  2. Step 2: Convert to fraction form
    31,716.20/43,679.58 = 31,027.43/x
  3. Step 3: Cross multiply
    31,716.20x = 43,679.58 × 31,027.43
  4. Step 4: Simplify right side
    31,716.20x = 1,355,265,110.88
  5. Step 5: Solve for x
    x = 1,355,265,110.88/31,716.20
  6. Step 6: Final answer
    x = 42,731.01

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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.