Home / 20,906.04-28,849.56-11,474.04

Finding the Fourth Proportional to 20,906.04, 28,849.56 and 11,474.04

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Solution

The fourth proportional to 20,906.04, 28,849.56 and 11,474.04 is: 15,833.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906.04 : 28,849.56 = 11,474.04 : x
  2. Step 2: Convert to fraction form
    20,906.04/28,849.56 = 11,474.04/x
  3. Step 3: Cross multiply
    20,906.04x = 28,849.56 × 11,474.04
  4. Step 4: Simplify right side
    20,906.04x = 331,021,005.42
  5. Step 5: Solve for x
    x = 331,021,005.42/20,906.04
  6. Step 6: Final answer
    x = 15,833.75

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1.5x scale

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.