Home / 20,239.11-27,942.98-13,072.25

Finding the Fourth Proportional to 20,239.11, 27,942.98 and 13,072.25

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Solution

The fourth proportional to 20,239.11, 27,942.98 and 13,072.25 is: 18,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.11 : 27,942.98 = 13,072.25 : x
  2. Step 2: Convert to fraction form
    20,239.11/27,942.98 = 13,072.25/x
  3. Step 3: Cross multiply
    20,239.11x = 27,942.98 × 13,072.25
  4. Step 4: Simplify right side
    20,239.11x = 365,277,624.80
  5. Step 5: Solve for x
    x = 365,277,624.80/20,239.11
  6. Step 6: Final answer
    x = 18,048.11

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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.