Home / 20,904.27-28,846.39-11,952.15

Finding the Fourth Proportional to 20,904.27, 28,846.39 and 11,952.15

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Solution

The fourth proportional to 20,904.27, 28,846.39 and 11,952.15 is: 16,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.27 : 28,846.39 = 11,952.15 : x
  2. Step 2: Convert to fraction form
    20,904.27/28,846.39 = 11,952.15/x
  3. Step 3: Cross multiply
    20,904.27x = 28,846.39 × 11,952.15
  4. Step 4: Simplify right side
    20,904.27x = 344,776,380.24
  5. Step 5: Solve for x
    x = 344,776,380.24/20,904.27
  6. Step 6: Final answer
    x = 16,493.11

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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.