Home / 20,608.94-28,440.96-11,656.82

Finding the Fourth Proportional to 20,608.94, 28,440.96 and 11,656.82

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Solution

The fourth proportional to 20,608.94, 28,440.96 and 11,656.82 is: 16,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.94 : 28,440.96 = 11,656.82 : x
  2. Step 2: Convert to fraction form
    20,608.94/28,440.96 = 11,656.82/x
  3. Step 3: Cross multiply
    20,608.94x = 28,440.96 × 11,656.82
  4. Step 4: Simplify right side
    20,608.94x = 331,531,151.35
  5. Step 5: Solve for x
    x = 331,531,151.35/20,608.94
  6. Step 6: Final answer
    x = 16,086.76

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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.