Home / 20,747.18-28,631.82-11,794.34

Finding the Fourth Proportional to 20,747.18, 28,631.82 and 11,794.34

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Solution

The fourth proportional to 20,747.18, 28,631.82 and 11,794.34 is: 16,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.18 : 28,631.82 = 11,794.34 : x
  2. Step 2: Convert to fraction form
    20,747.18/28,631.82 = 11,794.34/x
  3. Step 3: Cross multiply
    20,747.18x = 28,631.82 × 11,794.34
  4. Step 4: Simplify right side
    20,747.18x = 337,693,419.90
  5. Step 5: Solve for x
    x = 337,693,419.90/20,747.18
  6. Step 6: Final answer
    x = 16,276.59

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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.