Home / 20,274.07-27,976.60-11,321.04

Finding the Fourth Proportional to 20,274.07, 27,976.60 and 11,321.04

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Solution

The fourth proportional to 20,274.07, 27,976.60 and 11,321.04 is: 15,622.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.07 : 27,976.60 = 11,321.04 : x
  2. Step 2: Convert to fraction form
    20,274.07/27,976.60 = 11,321.04/x
  3. Step 3: Cross multiply
    20,274.07x = 27,976.60 × 11,321.04
  4. Step 4: Simplify right side
    20,274.07x = 316,724,116.90
  5. Step 5: Solve for x
    x = 316,724,116.90/20,274.07
  6. Step 6: Final answer
    x = 15,622.13

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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.