Home / 39,976.98-55,168.37-22,072.11

Finding the Fourth Proportional to 39,976.98, 55,168.37 and 22,072.11

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Solution

The fourth proportional to 39,976.98, 55,168.37 and 22,072.11 is: 30,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.98 : 55,168.37 = 22,072.11 : x
  2. Step 2: Convert to fraction form
    39,976.98/55,168.37 = 22,072.11/x
  3. Step 3: Cross multiply
    39,976.98x = 55,168.37 × 22,072.11
  4. Step 4: Simplify right side
    39,976.98x = 1,217,682,331.16
  5. Step 5: Solve for x
    x = 1,217,682,331.16/39,976.98
  6. Step 6: Final answer
    x = 30,459.59

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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.