Home / 21,021.26-29,009.34-11,589.82

Finding the Fourth Proportional to 21,021.26, 29,009.34 and 11,589.82

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Solution

The fourth proportional to 21,021.26, 29,009.34 and 11,589.82 is: 15,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.26 : 29,009.34 = 11,589.82 : x
  2. Step 2: Convert to fraction form
    21,021.26/29,009.34 = 11,589.82/x
  3. Step 3: Cross multiply
    21,021.26x = 29,009.34 × 11,589.82
  4. Step 4: Simplify right side
    21,021.26x = 336,212,956.40
  5. Step 5: Solve for x
    x = 336,212,956.40/21,021.26
  6. Step 6: Final answer
    x = 15,993.95

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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.