Home / 21,465.44-29,623.32-13,403.87

Finding the Fourth Proportional to 21,465.44, 29,623.32 and 13,403.87

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Solution

The fourth proportional to 21,465.44, 29,623.32 and 13,403.87 is: 18,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.44 : 29,623.32 = 13,403.87 : x
  2. Step 2: Convert to fraction form
    21,465.44/29,623.32 = 13,403.87/x
  3. Step 3: Cross multiply
    21,465.44x = 29,623.32 × 13,403.87
  4. Step 4: Simplify right side
    21,465.44x = 397,067,093.22
  5. Step 5: Solve for x
    x = 397,067,093.22/21,465.44
  6. Step 6: Final answer
    x = 18,497.97

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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.