Home / 36,072.80-49,780.35-20,157.26

Finding the Fourth Proportional to 36,072.80, 49,780.35 and 20,157.26

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Solution

The fourth proportional to 36,072.80, 49,780.35 and 20,157.26 is: 27,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,072.80 : 49,780.35 = 20,157.26 : x
  2. Step 2: Convert to fraction form
    36,072.80/49,780.35 = 20,157.26/x
  3. Step 3: Cross multiply
    36,072.80x = 49,780.35 × 20,157.26
  4. Step 4: Simplify right side
    36,072.80x = 1,003,435,208.94
  5. Step 5: Solve for x
    x = 1,003,435,208.94/36,072.80
  6. Step 6: Final answer
    x = 27,816.95

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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.