Home / 20,746.80-28,629.46-11,793.06

Finding the Fourth Proportional to 20,746.80, 28,629.46 and 11,793.06

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Solution

The fourth proportional to 20,746.80, 28,629.46 and 11,793.06 is: 16,273.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.80 : 28,629.46 = 11,793.06 : x
  2. Step 2: Convert to fraction form
    20,746.80/28,629.46 = 11,793.06/x
  3. Step 3: Cross multiply
    20,746.80x = 28,629.46 × 11,793.06
  4. Step 4: Simplify right side
    20,746.80x = 337,628,939.55
  5. Step 5: Solve for x
    x = 337,628,939.55/20,746.80
  6. Step 6: Final answer
    x = 16,273.78

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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.