Home / 20,191.12-27,862.56-11,692.63

Finding the Fourth Proportional to 20,191.12, 27,862.56 and 11,692.63

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Solution

The fourth proportional to 20,191.12, 27,862.56 and 11,692.63 is: 16,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.12 : 27,862.56 = 11,692.63 : x
  2. Step 2: Convert to fraction form
    20,191.12/27,862.56 = 11,692.63/x
  3. Step 3: Cross multiply
    20,191.12x = 27,862.56 × 11,692.63
  4. Step 4: Simplify right side
    20,191.12x = 325,786,604.93
  5. Step 5: Solve for x
    x = 325,786,604.93/20,191.12
  6. Step 6: Final answer
    x = 16,135.14

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1.5x scale

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.