Home / 21,255.44-29,331.20-11,824.07

Finding the Fourth Proportional to 21,255.44, 29,331.20 and 11,824.07

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Solution

The fourth proportional to 21,255.44, 29,331.20 and 11,824.07 is: 16,316.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.44 : 29,331.20 = 11,824.07 : x
  2. Step 2: Convert to fraction form
    21,255.44/29,331.20 = 11,824.07/x
  3. Step 3: Cross multiply
    21,255.44x = 29,331.20 × 11,824.07
  4. Step 4: Simplify right side
    21,255.44x = 346,814,102.86
  5. Step 5: Solve for x
    x = 346,814,102.86/21,255.44
  6. Step 6: Final answer
    x = 16,316.49

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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.