Home / 20,796.76-28,699.86-11,365.84

Finding the Fourth Proportional to 20,796.76, 28,699.86 and 11,365.84

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Solution

The fourth proportional to 20,796.76, 28,699.86 and 11,365.84 is: 15,685.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.76 : 28,699.86 = 11,365.84 : x
  2. Step 2: Convert to fraction form
    20,796.76/28,699.86 = 11,365.84/x
  3. Step 3: Cross multiply
    20,796.76x = 28,699.86 × 11,365.84
  4. Step 4: Simplify right side
    20,796.76x = 326,198,016.78
  5. Step 5: Solve for x
    x = 326,198,016.78/20,796.76
  6. Step 6: Final answer
    x = 15,685.04

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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.