Home / 20,895.36-28,833.72-11,942.84

Finding the Fourth Proportional to 20,895.36, 28,833.72 and 11,942.84

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Solution

The fourth proportional to 20,895.36, 28,833.72 and 11,942.84 is: 16,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.36 : 28,833.72 = 11,942.84 : x
  2. Step 2: Convert to fraction form
    20,895.36/28,833.72 = 11,942.84/x
  3. Step 3: Cross multiply
    20,895.36x = 28,833.72 × 11,942.84
  4. Step 4: Simplify right side
    20,895.36x = 344,356,504.56
  5. Step 5: Solve for x
    x = 344,356,504.56/20,895.36
  6. Step 6: Final answer
    x = 16,480.05

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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.