Home / 21,141-29,175.39-11,709.36

Finding the Fourth Proportional to 21,141, 29,175.39 and 11,709.36

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Solution

The fourth proportional to 21,141, 29,175.39 and 11,709.36 is: 16,159.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141 : 29,175.39 = 11,709.36 : x
  2. Step 2: Convert to fraction form
    21,141/29,175.39 = 11,709.36/x
  3. Step 3: Cross multiply
    21,141x = 29,175.39 × 11,709.36
  4. Step 4: Simplify right side
    21,141x = 341,625,144.65
  5. Step 5: Solve for x
    x = 341,625,144.65/21,141
  6. Step 6: Final answer
    x = 16,159.37

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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.