Home / 20,196.33-27,857.08-12,228.36

Finding the Fourth Proportional to 20,196.33, 27,857.08 and 12,228.36

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Solution

The fourth proportional to 20,196.33, 27,857.08 and 12,228.36 is: 16,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.33 : 27,857.08 = 12,228.36 : x
  2. Step 2: Convert to fraction form
    20,196.33/27,857.08 = 12,228.36/x
  3. Step 3: Cross multiply
    20,196.33x = 27,857.08 × 12,228.36
  4. Step 4: Simplify right side
    20,196.33x = 340,646,402.79
  5. Step 5: Solve for x
    x = 340,646,402.79/20,196.33
  6. Step 6: Final answer
    x = 16,866.75

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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.