Home / 20,196.90-27,866.97-12,237.30

Finding the Fourth Proportional to 20,196.90, 27,866.97 and 12,237.30

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Solution

The fourth proportional to 20,196.90, 27,866.97 and 12,237.30 is: 16,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.90 : 27,866.97 = 12,237.30 : x
  2. Step 2: Convert to fraction form
    20,196.90/27,866.97 = 12,237.30/x
  3. Step 3: Cross multiply
    20,196.90x = 27,866.97 × 12,237.30
  4. Step 4: Simplify right side
    20,196.90x = 341,016,471.98
  5. Step 5: Solve for x
    x = 341,016,471.98/20,196.90
  6. Step 6: Final answer
    x = 16,884.59

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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.