Home / 20,825.19-28,738.65-11,393.73

Finding the Fourth Proportional to 20,825.19, 28,738.65 and 11,393.73

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Solution

The fourth proportional to 20,825.19, 28,738.65 and 11,393.73 is: 15,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,825.19 : 28,738.65 = 11,393.73 : x
  2. Step 2: Convert to fraction form
    20,825.19/28,738.65 = 11,393.73/x
  3. Step 3: Cross multiply
    20,825.19x = 28,738.65 × 11,393.73
  4. Step 4: Simplify right side
    20,825.19x = 327,440,418.66
  5. Step 5: Solve for x
    x = 327,440,418.66/20,825.19
  6. Step 6: Final answer
    x = 15,723.29

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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.