Home / 21,112.22-29,134.42-11,552.07

Finding the Fourth Proportional to 21,112.22, 29,134.42 and 11,552.07

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Solution

The fourth proportional to 21,112.22, 29,134.42 and 11,552.07 is: 15,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,112.22 : 29,134.42 = 11,552.07 : x
  2. Step 2: Convert to fraction form
    21,112.22/29,134.42 = 11,552.07/x
  3. Step 3: Cross multiply
    21,112.22x = 29,134.42 × 11,552.07
  4. Step 4: Simplify right side
    21,112.22x = 336,562,857.68
  5. Step 5: Solve for x
    x = 336,562,857.68/21,112.22
  6. Step 6: Final answer
    x = 15,941.61

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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.