Home / 20,834.44-28,751.52-11,403

Finding the Fourth Proportional to 20,834.44, 28,751.52 and 11,403

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Solution

The fourth proportional to 20,834.44, 28,751.52 and 11,403 is: 15,736.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.44 : 28,751.52 = 11,403 : x
  2. Step 2: Convert to fraction form
    20,834.44/28,751.52 = 11,403/x
  3. Step 3: Cross multiply
    20,834.44x = 28,751.52 × 11,403
  4. Step 4: Simplify right side
    20,834.44x = 327,853,625.32
  5. Step 5: Solve for x
    x = 327,853,625.32/20,834.44
  6. Step 6: Final answer
    x = 15,736.14

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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.