Home / 21,134.09-29,163.97-11,574.07

Finding the Fourth Proportional to 21,134.09, 29,163.97 and 11,574.07

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Solution

The fourth proportional to 21,134.09, 29,163.97 and 11,574.07 is: 15,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.09 : 29,163.97 = 11,574.07 : x
  2. Step 2: Convert to fraction form
    21,134.09/29,163.97 = 11,574.07/x
  3. Step 3: Cross multiply
    21,134.09x = 29,163.97 × 11,574.07
  4. Step 4: Simplify right side
    21,134.09x = 337,545,830.26
  5. Step 5: Solve for x
    x = 337,545,830.26/21,134.09
  6. Step 6: Final answer
    x = 15,971.63

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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.