Home / 20,276.94-27,982.23-11,324.78

Finding the Fourth Proportional to 20,276.94, 27,982.23 and 11,324.78

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Solution

The fourth proportional to 20,276.94, 27,982.23 and 11,324.78 is: 15,628.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.94 : 27,982.23 = 11,324.78 : x
  2. Step 2: Convert to fraction form
    20,276.94/27,982.23 = 11,324.78/x
  3. Step 3: Cross multiply
    20,276.94x = 27,982.23 × 11,324.78
  4. Step 4: Simplify right side
    20,276.94x = 316,892,598.66
  5. Step 5: Solve for x
    x = 316,892,598.66/20,276.94
  6. Step 6: Final answer
    x = 15,628.23

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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.