Home / 20,349.94-28,078.26-11,850.16

Finding the Fourth Proportional to 20,349.94, 28,078.26 and 11,850.16

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Solution

The fourth proportional to 20,349.94, 28,078.26 and 11,850.16 is: 16,350.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.94 : 28,078.26 = 11,850.16 : x
  2. Step 2: Convert to fraction form
    20,349.94/28,078.26 = 11,850.16/x
  3. Step 3: Cross multiply
    20,349.94x = 28,078.26 × 11,850.16
  4. Step 4: Simplify right side
    20,349.94x = 332,731,873.52
  5. Step 5: Solve for x
    x = 332,731,873.52/20,349.94
  6. Step 6: Final answer
    x = 16,350.51

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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.