Home / 28,922.20-39,916.82-16,992.04

Finding the Fourth Proportional to 28,922.20, 39,916.82 and 16,992.04

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Solution

The fourth proportional to 28,922.20, 39,916.82 and 16,992.04 is: 23,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,922.20 : 39,916.82 = 16,992.04 : x
  2. Step 2: Convert to fraction form
    28,922.20/39,916.82 = 16,992.04/x
  3. Step 3: Cross multiply
    28,922.20x = 39,916.82 × 16,992.04
  4. Step 4: Simplify right side
    28,922.20x = 678,268,202.11
  5. Step 5: Solve for x
    x = 678,268,202.11/28,922.20
  6. Step 6: Final answer
    x = 23,451.47

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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.