Home / 20,274.68-27,977.46-11,321.48

Finding the Fourth Proportional to 20,274.68, 27,977.46 and 11,321.48

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Solution

The fourth proportional to 20,274.68, 27,977.46 and 11,321.48 is: 15,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.68 : 27,977.46 = 11,321.48 : x
  2. Step 2: Convert to fraction form
    20,274.68/27,977.46 = 11,321.48/x
  3. Step 3: Cross multiply
    20,274.68x = 27,977.46 × 11,321.48
  4. Step 4: Simplify right side
    20,274.68x = 316,746,253.84
  5. Step 5: Solve for x
    x = 316,746,253.84/20,274.68
  6. Step 6: Final answer
    x = 15,622.75

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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.