Home / 31,692.72-43,694.48-19,735.28

Finding the Fourth Proportional to 31,692.72, 43,694.48 and 19,735.28

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Solution

The fourth proportional to 31,692.72, 43,694.48 and 19,735.28 is: 27,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.72 : 43,694.48 = 19,735.28 : x
  2. Step 2: Convert to fraction form
    31,692.72/43,694.48 = 19,735.28/x
  3. Step 3: Cross multiply
    31,692.72x = 43,694.48 × 19,735.28
  4. Step 4: Simplify right side
    31,692.72x = 862,322,797.25
  5. Step 5: Solve for x
    x = 862,322,797.25/31,692.72
  6. Step 6: Final answer
    x = 27,208.86

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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.