Home / 19,787.14-29,682.26-5,747.40

Finding the Fourth Proportional to 19,787.14, 29,682.26 and 5,747.40

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Solution

The fourth proportional to 19,787.14, 29,682.26 and 5,747.40 is: 8,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.14 : 29,682.26 = 5,747.40 : x
  2. Step 2: Convert to fraction form
    19,787.14/29,682.26 = 5,747.40/x
  3. Step 3: Cross multiply
    19,787.14x = 29,682.26 × 5,747.40
  4. Step 4: Simplify right side
    19,787.14x = 170,595,821.12
  5. Step 5: Solve for x
    x = 170,595,821.12/19,787.14
  6. Step 6: Final answer
    x = 8,621.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.