Home / 19,399.94-29,102.19-6,921.74

Finding the Fourth Proportional to 19,399.94, 29,102.19 and 6,921.74

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Solution

The fourth proportional to 19,399.94, 29,102.19 and 6,921.74 is: 10,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.94 : 29,102.19 = 6,921.74 : x
  2. Step 2: Convert to fraction form
    19,399.94/29,102.19 = 6,921.74/x
  3. Step 3: Cross multiply
    19,399.94x = 29,102.19 × 6,921.74
  4. Step 4: Simplify right side
    19,399.94x = 201,437,792.61
  5. Step 5: Solve for x
    x = 201,437,792.61/19,399.94
  6. Step 6: Final answer
    x = 10,383.42

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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.