Home / 20,626.05-28,463.96-11,194.61

Finding the Fourth Proportional to 20,626.05, 28,463.96 and 11,194.61

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Solution

The fourth proportional to 20,626.05, 28,463.96 and 11,194.61 is: 15,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.05 : 28,463.96 = 11,194.61 : x
  2. Step 2: Convert to fraction form
    20,626.05/28,463.96 = 11,194.61/x
  3. Step 3: Cross multiply
    20,626.05x = 28,463.96 × 11,194.61
  4. Step 4: Simplify right side
    20,626.05x = 318,642,760.95
  5. Step 5: Solve for x
    x = 318,642,760.95/20,626.05
  6. Step 6: Final answer
    x = 15,448.56

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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.