Home / 20,954-28,916.52-11,523.44

Finding the Fourth Proportional to 20,954, 28,916.52 and 11,523.44

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Solution

The fourth proportional to 20,954, 28,916.52 and 11,523.44 is: 15,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954 : 28,916.52 = 11,523.44 : x
  2. Step 2: Convert to fraction form
    20,954/28,916.52 = 11,523.44/x
  3. Step 3: Cross multiply
    20,954x = 28,916.52 × 11,523.44
  4. Step 4: Simplify right side
    20,954x = 333,217,783.23
  5. Step 5: Solve for x
    x = 333,217,783.23/20,954
  6. Step 6: Final answer
    x = 15,902.35

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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.