Home / 20,280.18-27,993.33-11,896.50

Finding the Fourth Proportional to 20,280.18, 27,993.33 and 11,896.50

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Solution

The fourth proportional to 20,280.18, 27,993.33 and 11,896.50 is: 16,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280.18 : 27,993.33 = 11,896.50 : x
  2. Step 2: Convert to fraction form
    20,280.18/27,993.33 = 11,896.50/x
  3. Step 3: Cross multiply
    20,280.18x = 27,993.33 × 11,896.50
  4. Step 4: Simplify right side
    20,280.18x = 333,022,650.35
  5. Step 5: Solve for x
    x = 333,022,650.35/20,280.18
  6. Step 6: Final answer
    x = 16,421.09

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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.