Home / 28,977.60-39,983.82-17,043.30

Finding the Fourth Proportional to 28,977.60, 39,983.82 and 17,043.30

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Solution

The fourth proportional to 28,977.60, 39,983.82 and 17,043.30 is: 23,516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.60 : 39,983.82 = 17,043.30 : x
  2. Step 2: Convert to fraction form
    28,977.60/39,983.82 = 17,043.30/x
  3. Step 3: Cross multiply
    28,977.60x = 39,983.82 × 17,043.30
  4. Step 4: Simplify right side
    28,977.60x = 681,456,239.41
  5. Step 5: Solve for x
    x = 681,456,239.41/28,977.60
  6. Step 6: Final answer
    x = 23,516.66

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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.