Home / 20,767.73-28,659.53-11,336.45

Finding the Fourth Proportional to 20,767.73, 28,659.53 and 11,336.45

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Solution

The fourth proportional to 20,767.73, 28,659.53 and 11,336.45 is: 15,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.73 : 28,659.53 = 11,336.45 : x
  2. Step 2: Convert to fraction form
    20,767.73/28,659.53 = 11,336.45/x
  3. Step 3: Cross multiply
    20,767.73x = 28,659.53 × 11,336.45
  4. Step 4: Simplify right side
    20,767.73x = 324,897,213.91
  5. Step 5: Solve for x
    x = 324,897,213.91/20,767.73
  6. Step 6: Final answer
    x = 15,644.33

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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.