Home / 20,213.10-27,692.07-19,455.54

Finding the Fourth Proportional to 20,213.10, 27,692.07 and 19,455.54

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Solution

The fourth proportional to 20,213.10, 27,692.07 and 19,455.54 is: 26,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.10 : 27,692.07 = 19,455.54 : x
  2. Step 2: Convert to fraction form
    20,213.10/27,692.07 = 19,455.54/x
  3. Step 3: Cross multiply
    20,213.10x = 27,692.07 × 19,455.54
  4. Step 4: Simplify right side
    20,213.10x = 538,764,175.57
  5. Step 5: Solve for x
    x = 538,764,175.57/20,213.10
  6. Step 6: Final answer
    x = 26,654.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.