Home / 20,195.62-27,872.57-11,585.17

Finding the Fourth Proportional to 20,195.62, 27,872.57 and 11,585.17

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Solution

The fourth proportional to 20,195.62, 27,872.57 and 11,585.17 is: 15,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.62 : 27,872.57 = 11,585.17 : x
  2. Step 2: Convert to fraction form
    20,195.62/27,872.57 = 11,585.17/x
  3. Step 3: Cross multiply
    20,195.62x = 27,872.57 × 11,585.17
  4. Step 4: Simplify right side
    20,195.62x = 322,908,461.79
  5. Step 5: Solve for x
    x = 322,908,461.79/20,195.62
  6. Step 6: Final answer
    x = 15,989.03

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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.