Home / 20,742.98-28,625.99-11,789.96

Finding the Fourth Proportional to 20,742.98, 28,625.99 and 11,789.96

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Solution

The fourth proportional to 20,742.98, 28,625.99 and 11,789.96 is: 16,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,742.98 : 28,625.99 = 11,789.96 : x
  2. Step 2: Convert to fraction form
    20,742.98/28,625.99 = 11,789.96/x
  3. Step 3: Cross multiply
    20,742.98x = 28,625.99 × 11,789.96
  4. Step 4: Simplify right side
    20,742.98x = 337,499,277.06
  5. Step 5: Solve for x
    x = 337,499,277.06/20,742.98
  6. Step 6: Final answer
    x = 16,270.53

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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.