Home / 21,701.10-29,949.75-13,203.83

Finding the Fourth Proportional to 21,701.10, 29,949.75 and 13,203.83

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Solution

The fourth proportional to 21,701.10, 29,949.75 and 13,203.83 is: 18,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.10 : 29,949.75 = 13,203.83 : x
  2. Step 2: Convert to fraction form
    21,701.10/29,949.75 = 13,203.83/x
  3. Step 3: Cross multiply
    21,701.10x = 29,949.75 × 13,203.83
  4. Step 4: Simplify right side
    21,701.10x = 395,451,407.54
  5. Step 5: Solve for x
    x = 395,451,407.54/21,701.10
  6. Step 6: Final answer
    x = 18,222.64

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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.