Home / 22,128.20-30,533.49-12,694.94

Finding the Fourth Proportional to 22,128.20, 30,533.49 and 12,694.94

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Solution

The fourth proportional to 22,128.20, 30,533.49 and 12,694.94 is: 17,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.20 : 30,533.49 = 12,694.94 : x
  2. Step 2: Convert to fraction form
    22,128.20/30,533.49 = 12,694.94/x
  3. Step 3: Cross multiply
    22,128.20x = 30,533.49 × 12,694.94
  4. Step 4: Simplify right side
    22,128.20x = 387,620,823.54
  5. Step 5: Solve for x
    x = 387,620,823.54/22,128.20
  6. Step 6: Final answer
    x = 17,517.05

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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.