Home / 20,549.44-28,358.23-11,118

Finding the Fourth Proportional to 20,549.44, 28,358.23 and 11,118

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Solution

The fourth proportional to 20,549.44, 28,358.23 and 11,118 is: 15,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.44 : 28,358.23 = 11,118 : x
  2. Step 2: Convert to fraction form
    20,549.44/28,358.23 = 11,118/x
  3. Step 3: Cross multiply
    20,549.44x = 28,358.23 × 11,118
  4. Step 4: Simplify right side
    20,549.44x = 315,286,773.35
  5. Step 5: Solve for x
    x = 315,286,773.35/20,549.44
  6. Step 6: Final answer
    x = 15,342.84

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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.