Home / 20,100.92-27,739.08-11,148.44

Finding the Fourth Proportional to 20,100.92, 27,739.08 and 11,148.44

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Solution

The fourth proportional to 20,100.92, 27,739.08 and 11,148.44 is: 15,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.92 : 27,739.08 = 11,148.44 : x
  2. Step 2: Convert to fraction form
    20,100.92/27,739.08 = 11,148.44/x
  3. Step 3: Cross multiply
    20,100.92x = 27,739.08 × 11,148.44
  4. Step 4: Simplify right side
    20,100.92x = 309,247,330.34
  5. Step 5: Solve for x
    x = 309,247,330.34/20,100.92
  6. Step 6: Final answer
    x = 15,384.74

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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.