Home / 20,677.97-28,535.82-11,246.54

Finding the Fourth Proportional to 20,677.97, 28,535.82 and 11,246.54

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Solution

The fourth proportional to 20,677.97, 28,535.82 and 11,246.54 is: 15,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.97 : 28,535.82 = 11,246.54 : x
  2. Step 2: Convert to fraction form
    20,677.97/28,535.82 = 11,246.54/x
  3. Step 3: Cross multiply
    20,677.97x = 28,535.82 × 11,246.54
  4. Step 4: Simplify right side
    20,677.97x = 320,929,241.06
  5. Step 5: Solve for x
    x = 320,929,241.06/20,677.97
  6. Step 6: Final answer
    x = 15,520.35

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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.