Home / 20,277.94-27,975.60-11,778.60

Finding the Fourth Proportional to 20,277.94, 27,975.60 and 11,778.60

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Solution

The fourth proportional to 20,277.94, 27,975.60 and 11,778.60 is: 16,249.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.94 : 27,975.60 = 11,778.60 : x
  2. Step 2: Convert to fraction form
    20,277.94/27,975.60 = 11,778.60/x
  3. Step 3: Cross multiply
    20,277.94x = 27,975.60 × 11,778.60
  4. Step 4: Simplify right side
    20,277.94x = 329,513,402.16
  5. Step 5: Solve for x
    x = 329,513,402.16/20,277.94
  6. Step 6: Final answer
    x = 16,249.85

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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.