Home / 20,903.94-28,847.41-11,951.64

Finding the Fourth Proportional to 20,903.94, 28,847.41 and 11,951.64

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Solution

The fourth proportional to 20,903.94, 28,847.41 and 11,951.64 is: 16,493.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.94 : 28,847.41 = 11,951.64 : x
  2. Step 2: Convert to fraction form
    20,903.94/28,847.41 = 11,951.64/x
  3. Step 3: Cross multiply
    20,903.94x = 28,847.41 × 11,951.64
  4. Step 4: Simplify right side
    20,903.94x = 344,773,859.25
  5. Step 5: Solve for x
    x = 344,773,859.25/20,903.94
  6. Step 6: Final answer
    x = 16,493.25

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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.