Home / 20,906.68-28,849.74-11,473.48

Finding the Fourth Proportional to 20,906.68, 28,849.74 and 11,473.48

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Solution

The fourth proportional to 20,906.68, 28,849.74 and 11,473.48 is: 15,832.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906.68 : 28,849.74 = 11,473.48 : x
  2. Step 2: Convert to fraction form
    20,906.68/28,849.74 = 11,473.48/x
  3. Step 3: Cross multiply
    20,906.68x = 28,849.74 × 11,473.48
  4. Step 4: Simplify right side
    20,906.68x = 331,006,914.90
  5. Step 5: Solve for x
    x = 331,006,914.90/20,906.68
  6. Step 6: Final answer
    x = 15,832.59

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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.