Home / 21,067.75-29,070.93-11,636.38

Finding the Fourth Proportional to 21,067.75, 29,070.93 and 11,636.38

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Solution

The fourth proportional to 21,067.75, 29,070.93 and 11,636.38 is: 16,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.75 : 29,070.93 = 11,636.38 : x
  2. Step 2: Convert to fraction form
    21,067.75/29,070.93 = 11,636.38/x
  3. Step 3: Cross multiply
    21,067.75x = 29,070.93 × 11,636.38
  4. Step 4: Simplify right side
    21,067.75x = 338,280,388.43
  5. Step 5: Solve for x
    x = 338,280,388.43/21,067.75
  6. Step 6: Final answer
    x = 16,056.79

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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.