Home / 21,355.11-29,467.31-11,924.07

Finding the Fourth Proportional to 21,355.11, 29,467.31 and 11,924.07

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Solution

The fourth proportional to 21,355.11, 29,467.31 and 11,924.07 is: 16,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.11 : 29,467.31 = 11,924.07 : x
  2. Step 2: Convert to fraction form
    21,355.11/29,467.31 = 11,924.07/x
  3. Step 3: Cross multiply
    21,355.11x = 29,467.31 × 11,924.07
  4. Step 4: Simplify right side
    21,355.11x = 351,370,207.53
  5. Step 5: Solve for x
    x = 351,370,207.53/21,355.11
  6. Step 6: Final answer
    x = 16,453.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.