Home / 21,752.82-30,021.01-12,194.33

Finding the Fourth Proportional to 21,752.82, 30,021.01 and 12,194.33

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Solution

The fourth proportional to 21,752.82, 30,021.01 and 12,194.33 is: 16,829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,752.82 : 30,021.01 = 12,194.33 : x
  2. Step 2: Convert to fraction form
    21,752.82/30,021.01 = 12,194.33/x
  3. Step 3: Cross multiply
    21,752.82x = 30,021.01 × 12,194.33
  4. Step 4: Simplify right side
    21,752.82x = 366,086,041.90
  5. Step 5: Solve for x
    x = 366,086,041.90/21,752.82
  6. Step 6: Final answer
    x = 16,829.36

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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.