Home / 19,977.44-29,965.92-5,185.04

Finding the Fourth Proportional to 19,977.44, 29,965.92 and 5,185.04

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Solution

The fourth proportional to 19,977.44, 29,965.92 and 5,185.04 is: 7,777.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.44 : 29,965.92 = 5,185.04 : x
  2. Step 2: Convert to fraction form
    19,977.44/29,965.92 = 5,185.04/x
  3. Step 3: Cross multiply
    19,977.44x = 29,965.92 × 5,185.04
  4. Step 4: Simplify right side
    19,977.44x = 155,374,493.84
  5. Step 5: Solve for x
    x = 155,374,493.84/19,977.44
  6. Step 6: Final answer
    x = 7,777.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.