Home / 19,579.54-29,372.37-6,428.92

Finding the Fourth Proportional to 19,579.54, 29,372.37 and 6,428.92

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Solution

The fourth proportional to 19,579.54, 29,372.37 and 6,428.92 is: 9,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.54 : 29,372.37 = 6,428.92 : x
  2. Step 2: Convert to fraction form
    19,579.54/29,372.37 = 6,428.92/x
  3. Step 3: Cross multiply
    19,579.54x = 29,372.37 × 6,428.92
  4. Step 4: Simplify right side
    19,579.54x = 188,832,616.94
  5. Step 5: Solve for x
    x = 188,832,616.94/19,579.54
  6. Step 6: Final answer
    x = 9,644.38

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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.