Home / 20,713.68-28,585.89-11,761.02

Finding the Fourth Proportional to 20,713.68, 28,585.89 and 11,761.02

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Solution

The fourth proportional to 20,713.68, 28,585.89 and 11,761.02 is: 16,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.68 : 28,585.89 = 11,761.02 : x
  2. Step 2: Convert to fraction form
    20,713.68/28,585.89 = 11,761.02/x
  3. Step 3: Cross multiply
    20,713.68x = 28,585.89 × 11,761.02
  4. Step 4: Simplify right side
    20,713.68x = 336,199,224.01
  5. Step 5: Solve for x
    x = 336,199,224.01/20,713.68
  6. Step 6: Final answer
    x = 16,230.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.