Home / 21,004.62-28,986.11-11,444.92

Finding the Fourth Proportional to 21,004.62, 28,986.11 and 11,444.92

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Solution

The fourth proportional to 21,004.62, 28,986.11 and 11,444.92 is: 15,793.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.62 : 28,986.11 = 11,444.92 : x
  2. Step 2: Convert to fraction form
    21,004.62/28,986.11 = 11,444.92/x
  3. Step 3: Cross multiply
    21,004.62x = 28,986.11 × 11,444.92
  4. Step 4: Simplify right side
    21,004.62x = 331,743,565.13
  5. Step 5: Solve for x
    x = 331,743,565.13/21,004.62
  6. Step 6: Final answer
    x = 15,793.84

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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.