Home / 28,982.96-39,993.72-23,029.04

Finding the Fourth Proportional to 28,982.96, 39,993.72 and 23,029.04

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Solution

The fourth proportional to 28,982.96, 39,993.72 and 23,029.04 is: 31,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,982.96 : 39,993.72 = 23,029.04 : x
  2. Step 2: Convert to fraction form
    28,982.96/39,993.72 = 23,029.04/x
  3. Step 3: Cross multiply
    28,982.96x = 39,993.72 × 23,029.04
  4. Step 4: Simplify right side
    28,982.96x = 921,016,977.63
  5. Step 5: Solve for x
    x = 921,016,977.63/28,982.96
  6. Step 6: Final answer
    x = 31,777.88

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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.