Home / 28,917.60-39,896.94-16,983.90

Finding the Fourth Proportional to 28,917.60, 39,896.94 and 16,983.90

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Solution

The fourth proportional to 28,917.60, 39,896.94 and 16,983.90 is: 23,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.60 : 39,896.94 = 16,983.90 : x
  2. Step 2: Convert to fraction form
    28,917.60/39,896.94 = 16,983.90/x
  3. Step 3: Cross multiply
    28,917.60x = 39,896.94 × 16,983.90
  4. Step 4: Simplify right side
    28,917.60x = 677,605,639.27
  5. Step 5: Solve for x
    x = 677,605,639.27/28,917.60
  6. Step 6: Final answer
    x = 23,432.29

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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.