Home / 21,808.36-30,093.30-12,249.31

Finding the Fourth Proportional to 21,808.36, 30,093.30 and 12,249.31

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Solution

The fourth proportional to 21,808.36, 30,093.30 and 12,249.31 is: 16,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,808.36 : 30,093.30 = 12,249.31 : x
  2. Step 2: Convert to fraction form
    21,808.36/30,093.30 = 12,249.31/x
  3. Step 3: Cross multiply
    21,808.36x = 30,093.30 × 12,249.31
  4. Step 4: Simplify right side
    21,808.36x = 368,622,160.62
  5. Step 5: Solve for x
    x = 368,622,160.62/21,808.36
  6. Step 6: Final answer
    x = 16,902.79

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1.5x scale

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.