Home / 19,940.20-27,516.34-11,440.52

Finding the Fourth Proportional to 19,940.20, 27,516.34 and 11,440.52

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Solution

The fourth proportional to 19,940.20, 27,516.34 and 11,440.52 is: 15,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.20 : 27,516.34 = 11,440.52 : x
  2. Step 2: Convert to fraction form
    19,940.20/27,516.34 = 11,440.52/x
  3. Step 3: Cross multiply
    19,940.20x = 27,516.34 × 11,440.52
  4. Step 4: Simplify right side
    19,940.20x = 314,801,238.10
  5. Step 5: Solve for x
    x = 314,801,238.10/19,940.20
  6. Step 6: Final answer
    x = 15,787.27

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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.