Home / 20,834.07-28,751.49-11,402.66

Finding the Fourth Proportional to 20,834.07, 28,751.49 and 11,402.66

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Solution

The fourth proportional to 20,834.07, 28,751.49 and 11,402.66 is: 15,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.07 : 28,751.49 = 11,402.66 : x
  2. Step 2: Convert to fraction form
    20,834.07/28,751.49 = 11,402.66/x
  3. Step 3: Cross multiply
    20,834.07x = 28,751.49 × 11,402.66
  4. Step 4: Simplify right side
    20,834.07x = 327,843,321.21
  5. Step 5: Solve for x
    x = 327,843,321.21/20,834.07
  6. Step 6: Final answer
    x = 15,735.92

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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.