Home / 19,944.28-29,919.97-6,618.08

Finding the Fourth Proportional to 19,944.28, 29,919.97 and 6,618.08

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Solution

The fourth proportional to 19,944.28, 29,919.97 and 6,618.08 is: 9,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944.28 : 29,919.97 = 6,618.08 : x
  2. Step 2: Convert to fraction form
    19,944.28/29,919.97 = 6,618.08/x
  3. Step 3: Cross multiply
    19,944.28x = 29,919.97 × 6,618.08
  4. Step 4: Simplify right side
    19,944.28x = 198,012,670.94
  5. Step 5: Solve for x
    x = 198,012,670.94/19,944.28
  6. Step 6: Final answer
    x = 9,928.29

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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.