Home / 20,767.56-28,659.38-11,336.20

Finding the Fourth Proportional to 20,767.56, 28,659.38 and 11,336.20

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Solution

The fourth proportional to 20,767.56, 28,659.38 and 11,336.20 is: 15,644.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.56 : 28,659.38 = 11,336.20 : x
  2. Step 2: Convert to fraction form
    20,767.56/28,659.38 = 11,336.20/x
  3. Step 3: Cross multiply
    20,767.56x = 28,659.38 × 11,336.20
  4. Step 4: Simplify right side
    20,767.56x = 324,888,463.56
  5. Step 5: Solve for x
    x = 324,888,463.56/20,767.56
  6. Step 6: Final answer
    x = 15,644.04

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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.