Home / 19,578.24-29,361.96-6,429.24

Finding the Fourth Proportional to 19,578.24, 29,361.96 and 6,429.24

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Solution

The fourth proportional to 19,578.24, 29,361.96 and 6,429.24 is: 9,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.24 : 29,361.96 = 6,429.24 : x
  2. Step 2: Convert to fraction form
    19,578.24/29,361.96 = 6,429.24/x
  3. Step 3: Cross multiply
    19,578.24x = 29,361.96 × 6,429.24
  4. Step 4: Simplify right side
    19,578.24x = 188,775,087.71
  5. Step 5: Solve for x
    x = 188,775,087.71/19,578.24
  6. Step 6: Final answer
    x = 9,642.09

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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.