Home / 21,273.24-29,356.83-11,712.93

Finding the Fourth Proportional to 21,273.24, 29,356.83 and 11,712.93

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Solution

The fourth proportional to 21,273.24, 29,356.83 and 11,712.93 is: 16,163.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.24 : 29,356.83 = 11,712.93 : x
  2. Step 2: Convert to fraction form
    21,273.24/29,356.83 = 11,712.93/x
  3. Step 3: Cross multiply
    21,273.24x = 29,356.83 × 11,712.93
  4. Step 4: Simplify right side
    21,273.24x = 343,854,494.81
  5. Step 5: Solve for x
    x = 343,854,494.81/21,273.24
  6. Step 6: Final answer
    x = 16,163.71

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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.