Home / 21,268.74-29,350.62-11,708.41

Finding the Fourth Proportional to 21,268.74, 29,350.62 and 11,708.41

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Solution

The fourth proportional to 21,268.74, 29,350.62 and 11,708.41 is: 16,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.74 : 29,350.62 = 11,708.41 : x
  2. Step 2: Convert to fraction form
    21,268.74/29,350.62 = 11,708.41/x
  3. Step 3: Cross multiply
    21,268.74x = 29,350.62 × 11,708.41
  4. Step 4: Simplify right side
    21,268.74x = 343,649,092.71
  5. Step 5: Solve for x
    x = 343,649,092.71/21,268.74
  6. Step 6: Final answer
    x = 16,157.47

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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.