Home / 20,137.03-27,784.62-12,179.11

Finding the Fourth Proportional to 20,137.03, 27,784.62 and 12,179.11

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Solution

The fourth proportional to 20,137.03, 27,784.62 and 12,179.11 is: 16,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.03 : 27,784.62 = 12,179.11 : x
  2. Step 2: Convert to fraction form
    20,137.03/27,784.62 = 12,179.11/x
  3. Step 3: Cross multiply
    20,137.03x = 27,784.62 × 12,179.11
  4. Step 4: Simplify right side
    20,137.03x = 338,391,943.29
  5. Step 5: Solve for x
    x = 338,391,943.29/20,137.03
  6. Step 6: Final answer
    x = 16,804.46

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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.