Home / 20,903.49-28,845.99-11,951.82

Finding the Fourth Proportional to 20,903.49, 28,845.99 and 11,951.82

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Solution

The fourth proportional to 20,903.49, 28,845.99 and 11,951.82 is: 16,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.49 : 28,845.99 = 11,951.82 : x
  2. Step 2: Convert to fraction form
    20,903.49/28,845.99 = 11,951.82/x
  3. Step 3: Cross multiply
    20,903.49x = 28,845.99 × 11,951.82
  4. Step 4: Simplify right side
    20,903.49x = 344,762,080.20
  5. Step 5: Solve for x
    x = 344,762,080.20/20,903.49
  6. Step 6: Final answer
    x = 16,493.04

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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.