Home / 19,629.41-29,439.99-6,478.79

Finding the Fourth Proportional to 19,629.41, 29,439.99 and 6,478.79

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Solution

The fourth proportional to 19,629.41, 29,439.99 and 6,478.79 is: 9,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.41 : 29,439.99 = 6,478.79 : x
  2. Step 2: Convert to fraction form
    19,629.41/29,439.99 = 6,478.79/x
  3. Step 3: Cross multiply
    19,629.41x = 29,439.99 × 6,478.79
  4. Step 4: Simplify right side
    19,629.41x = 190,735,365.61
  5. Step 5: Solve for x
    x = 190,735,365.61/19,629.41
  6. Step 6: Final answer
    x = 9,716.82

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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.