Home / 20,276.44-27,981.54-11,324.28

Finding the Fourth Proportional to 20,276.44, 27,981.54 and 11,324.28

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Solution

The fourth proportional to 20,276.44, 27,981.54 and 11,324.28 is: 15,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.44 : 27,981.54 = 11,324.28 : x
  2. Step 2: Convert to fraction form
    20,276.44/27,981.54 = 11,324.28/x
  3. Step 3: Cross multiply
    20,276.44x = 27,981.54 × 11,324.28
  4. Step 4: Simplify right side
    20,276.44x = 316,870,793.79
  5. Step 5: Solve for x
    x = 316,870,793.79/20,276.44
  6. Step 6: Final answer
    x = 15,627.54

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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.