Home / 22,126.16-30,535.80-12,694.88

Finding the Fourth Proportional to 22,126.16, 30,535.80 and 12,694.88

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Solution

The fourth proportional to 22,126.16, 30,535.80 and 12,694.88 is: 17,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126.16 : 30,535.80 = 12,694.88 : x
  2. Step 2: Convert to fraction form
    22,126.16/30,535.80 = 12,694.88/x
  3. Step 3: Cross multiply
    22,126.16x = 30,535.80 × 12,694.88
  4. Step 4: Simplify right side
    22,126.16x = 387,648,316.70
  5. Step 5: Solve for x
    x = 387,648,316.70/22,126.16
  6. Step 6: Final answer
    x = 17,519.91

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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.