Home / 20,965.83-28,932.68-11,892.92

Finding the Fourth Proportional to 20,965.83, 28,932.68 and 11,892.92

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Solution

The fourth proportional to 20,965.83, 28,932.68 and 11,892.92 is: 16,412.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965.83 : 28,932.68 = 11,892.92 : x
  2. Step 2: Convert to fraction form
    20,965.83/28,932.68 = 11,892.92/x
  3. Step 3: Cross multiply
    20,965.83x = 28,932.68 × 11,892.92
  4. Step 4: Simplify right side
    20,965.83x = 344,093,844.50
  5. Step 5: Solve for x
    x = 344,093,844.50/20,965.83
  6. Step 6: Final answer
    x = 16,412.13

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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.