Home / 28,910.44-39,902.34-16,980.04

Finding the Fourth Proportional to 28,910.44, 39,902.34 and 16,980.04

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Solution

The fourth proportional to 28,910.44, 39,902.34 and 16,980.04 is: 23,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.44 : 39,902.34 = 16,980.04 : x
  2. Step 2: Convert to fraction form
    28,910.44/39,902.34 = 16,980.04/x
  3. Step 3: Cross multiply
    28,910.44x = 39,902.34 × 16,980.04
  4. Step 4: Simplify right side
    28,910.44x = 677,543,329.29
  5. Step 5: Solve for x
    x = 677,543,329.29/28,910.44
  6. Step 6: Final answer
    x = 23,435.94

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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.