Home / 27,485.80-41,204.70-18,692.20

Finding the Fourth Proportional to 27,485.80, 41,204.70 and 18,692.20

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Solution

The fourth proportional to 27,485.80, 41,204.70 and 18,692.20 is: 28,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,485.80 : 41,204.70 = 18,692.20 : x
  2. Step 2: Convert to fraction form
    27,485.80/41,204.70 = 18,692.20/x
  3. Step 3: Cross multiply
    27,485.80x = 41,204.70 × 18,692.20
  4. Step 4: Simplify right side
    27,485.80x = 770,206,493.34
  5. Step 5: Solve for x
    x = 770,206,493.34/27,485.80
  6. Step 6: Final answer
    x = 28,021.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.