Home / 20,538.76-28,342.34-11,463.48

Finding the Fourth Proportional to 20,538.76, 28,342.34 and 11,463.48

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Solution

The fourth proportional to 20,538.76, 28,342.34 and 11,463.48 is: 15,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538.76 : 28,342.34 = 11,463.48 : x
  2. Step 2: Convert to fraction form
    20,538.76/28,342.34 = 11,463.48/x
  3. Step 3: Cross multiply
    20,538.76x = 28,342.34 × 11,463.48
  4. Step 4: Simplify right side
    20,538.76x = 324,901,847.74
  5. Step 5: Solve for x
    x = 324,901,847.74/20,538.76
  6. Step 6: Final answer
    x = 15,818.96

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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.