Home / 20,213.54-27,692.65-19,455.98

Finding the Fourth Proportional to 20,213.54, 27,692.65 and 19,455.98

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Solution

The fourth proportional to 20,213.54, 27,692.65 and 19,455.98 is: 26,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.54 : 27,692.65 = 19,455.98 : x
  2. Step 2: Convert to fraction form
    20,213.54/27,692.65 = 19,455.98/x
  3. Step 3: Cross multiply
    20,213.54x = 27,692.65 × 19,455.98
  4. Step 4: Simplify right side
    20,213.54x = 538,787,686.17
  5. Step 5: Solve for x
    x = 538,787,686.17/20,213.54
  6. Step 6: Final answer
    x = 26,654.79

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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.