Home / 20,659.45-28,508.86-11,227.94

Finding the Fourth Proportional to 20,659.45, 28,508.86 and 11,227.94

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Solution

The fourth proportional to 20,659.45, 28,508.86 and 11,227.94 is: 15,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.45 : 28,508.86 = 11,227.94 : x
  2. Step 2: Convert to fraction form
    20,659.45/28,508.86 = 11,227.94/x
  3. Step 3: Cross multiply
    20,659.45x = 28,508.86 × 11,227.94
  4. Step 4: Simplify right side
    20,659.45x = 320,095,769.55
  5. Step 5: Solve for x
    x = 320,095,769.55/20,659.45
  6. Step 6: Final answer
    x = 15,493.92

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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.