Home / 20,517.44-28,309.02-11,564.96

Finding the Fourth Proportional to 20,517.44, 28,309.02 and 11,564.96

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Solution

The fourth proportional to 20,517.44, 28,309.02 and 11,564.96 is: 15,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.44 : 28,309.02 = 11,564.96 : x
  2. Step 2: Convert to fraction form
    20,517.44/28,309.02 = 11,564.96/x
  3. Step 3: Cross multiply
    20,517.44x = 28,309.02 × 11,564.96
  4. Step 4: Simplify right side
    20,517.44x = 327,392,683.94
  5. Step 5: Solve for x
    x = 327,392,683.94/20,517.44
  6. Step 6: Final answer
    x = 15,956.80

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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.