Home / 20,834.82-28,752.65-11,403.99

Finding the Fourth Proportional to 20,834.82, 28,752.65 and 11,403.99

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Solution

The fourth proportional to 20,834.82, 28,752.65 and 11,403.99 is: 15,737.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.82 : 28,752.65 = 11,403.99 : x
  2. Step 2: Convert to fraction form
    20,834.82/28,752.65 = 11,403.99/x
  3. Step 3: Cross multiply
    20,834.82x = 28,752.65 × 11,403.99
  4. Step 4: Simplify right side
    20,834.82x = 327,894,876.05
  5. Step 5: Solve for x
    x = 327,894,876.05/20,834.82
  6. Step 6: Final answer
    x = 15,737.83

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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.