Home / 20,558.62-28,371.41-11,606.25

Finding the Fourth Proportional to 20,558.62, 28,371.41 and 11,606.25

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Solution

The fourth proportional to 20,558.62, 28,371.41 and 11,606.25 is: 16,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.62 : 28,371.41 = 11,606.25 : x
  2. Step 2: Convert to fraction form
    20,558.62/28,371.41 = 11,606.25/x
  3. Step 3: Cross multiply
    20,558.62x = 28,371.41 × 11,606.25
  4. Step 4: Simplify right side
    20,558.62x = 329,285,677.31
  5. Step 5: Solve for x
    x = 329,285,677.31/20,558.62
  6. Step 6: Final answer
    x = 16,016.92

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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.