Home / 21,021.24-29,008.86-11,589.82

Finding the Fourth Proportional to 21,021.24, 29,008.86 and 11,589.82

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Solution

The fourth proportional to 21,021.24, 29,008.86 and 11,589.82 is: 15,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.24 : 29,008.86 = 11,589.82 : x
  2. Step 2: Convert to fraction form
    21,021.24/29,008.86 = 11,589.82/x
  3. Step 3: Cross multiply
    21,021.24x = 29,008.86 × 11,589.82
  4. Step 4: Simplify right side
    21,021.24x = 336,207,465.81
  5. Step 5: Solve for x
    x = 336,207,465.81/21,021.24
  6. Step 6: Final answer
    x = 15,993.70

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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.