Home / 20,238.84-27,932.96-11,745.99

Finding the Fourth Proportional to 20,238.84, 27,932.96 and 11,745.99

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Solution

The fourth proportional to 20,238.84, 27,932.96 and 11,745.99 is: 16,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.84 : 27,932.96 = 11,745.99 : x
  2. Step 2: Convert to fraction form
    20,238.84/27,932.96 = 11,745.99/x
  3. Step 3: Cross multiply
    20,238.84x = 27,932.96 × 11,745.99
  4. Step 4: Simplify right side
    20,238.84x = 328,100,298.20
  5. Step 5: Solve for x
    x = 328,100,298.20/20,238.84
  6. Step 6: Final answer
    x = 16,211.42

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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.