Home / 20,834.27-28,751.98-11,402.83

Finding the Fourth Proportional to 20,834.27, 28,751.98 and 11,402.83

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Solution

The fourth proportional to 20,834.27, 28,751.98 and 11,402.83 is: 15,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.27 : 28,751.98 = 11,402.83 : x
  2. Step 2: Convert to fraction form
    20,834.27/28,751.98 = 11,402.83/x
  3. Step 3: Cross multiply
    20,834.27x = 28,751.98 × 11,402.83
  4. Step 4: Simplify right side
    20,834.27x = 327,853,940.10
  5. Step 5: Solve for x
    x = 327,853,940.10/20,834.27
  6. Step 6: Final answer
    x = 15,736.28

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1.5x scale

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.