Home / 19,944.78-29,920.73-6,618.58

Finding the Fourth Proportional to 19,944.78, 29,920.73 and 6,618.58

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Solution

The fourth proportional to 19,944.78, 29,920.73 and 6,618.58 is: 9,929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944.78 : 29,920.73 = 6,618.58 : x
  2. Step 2: Convert to fraction form
    19,944.78/29,920.73 = 6,618.58/x
  3. Step 3: Cross multiply
    19,944.78x = 29,920.73 × 6,618.58
  4. Step 4: Simplify right side
    19,944.78x = 198,032,562.47
  5. Step 5: Solve for x
    x = 198,032,562.47/19,944.78
  6. Step 6: Final answer
    x = 9,929.04

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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.