Home / 20,914.12-28,863.32-11,484.52

Finding the Fourth Proportional to 20,914.12, 28,863.32 and 11,484.52

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Solution

The fourth proportional to 20,914.12, 28,863.32 and 11,484.52 is: 15,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.12 : 28,863.32 = 11,484.52 : x
  2. Step 2: Convert to fraction form
    20,914.12/28,863.32 = 11,484.52/x
  3. Step 3: Cross multiply
    20,914.12x = 28,863.32 × 11,484.52
  4. Step 4: Simplify right side
    20,914.12x = 331,481,375.81
  5. Step 5: Solve for x
    x = 331,481,375.81/20,914.12
  6. Step 6: Final answer
    x = 15,849.64

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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.