Home / 22,049.43-30,428.77-11,977.87

Finding the Fourth Proportional to 22,049.43, 30,428.77 and 11,977.87

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Solution

The fourth proportional to 22,049.43, 30,428.77 and 11,977.87 is: 16,529.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,049.43 : 30,428.77 = 11,977.87 : x
  2. Step 2: Convert to fraction form
    22,049.43/30,428.77 = 11,977.87/x
  3. Step 3: Cross multiply
    22,049.43x = 30,428.77 × 11,977.87
  4. Step 4: Simplify right side
    22,049.43x = 364,471,851.32
  5. Step 5: Solve for x
    x = 364,471,851.32/22,049.43
  6. Step 6: Final answer
    x = 16,529.76

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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.