Home / 19,863.36-29,718-14,329.44

Finding the Fourth Proportional to 19,863.36, 29,718 and 14,329.44

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Solution

The fourth proportional to 19,863.36, 29,718 and 14,329.44 is: 21,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.36 : 29,718 = 14,329.44 : x
  2. Step 2: Convert to fraction form
    19,863.36/29,718 = 14,329.44/x
  3. Step 3: Cross multiply
    19,863.36x = 29,718 × 14,329.44
  4. Step 4: Simplify right side
    19,863.36x = 425,842,297.92
  5. Step 5: Solve for x
    x = 425,842,297.92/19,863.36
  6. Step 6: Final answer
    x = 21,438.58

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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.