Home / 21,040.86-29,034.36-11,608.80

Finding the Fourth Proportional to 21,040.86, 29,034.36 and 11,608.80

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Solution

The fourth proportional to 21,040.86, 29,034.36 and 11,608.80 is: 16,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.86 : 29,034.36 = 11,608.80 : x
  2. Step 2: Convert to fraction form
    21,040.86/29,034.36 = 11,608.80/x
  3. Step 3: Cross multiply
    21,040.86x = 29,034.36 × 11,608.80
  4. Step 4: Simplify right side
    21,040.86x = 337,054,078.37
  5. Step 5: Solve for x
    x = 337,054,078.37/21,040.86
  6. Step 6: Final answer
    x = 16,019.03

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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.