Home / 20,750.06-28,635.17-11,318.82

Finding the Fourth Proportional to 20,750.06, 28,635.17 and 11,318.82

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Solution

The fourth proportional to 20,750.06, 28,635.17 and 11,318.82 is: 15,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.06 : 28,635.17 = 11,318.82 : x
  2. Step 2: Convert to fraction form
    20,750.06/28,635.17 = 11,318.82/x
  3. Step 3: Cross multiply
    20,750.06x = 28,635.17 × 11,318.82
  4. Step 4: Simplify right side
    20,750.06x = 324,116,334.90
  5. Step 5: Solve for x
    x = 324,116,334.90/20,750.06
  6. Step 6: Final answer
    x = 15,620.02

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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.