Home / 21,407.22-29,539.42-11,845.84

Finding the Fourth Proportional to 21,407.22, 29,539.42 and 11,845.84

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Solution

The fourth proportional to 21,407.22, 29,539.42 and 11,845.84 is: 16,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.22 : 29,539.42 = 11,845.84 : x
  2. Step 2: Convert to fraction form
    21,407.22/29,539.42 = 11,845.84/x
  3. Step 3: Cross multiply
    21,407.22x = 29,539.42 × 11,845.84
  4. Step 4: Simplify right side
    21,407.22x = 349,919,243.01
  5. Step 5: Solve for x
    x = 349,919,243.01/21,407.22
  6. Step 6: Final answer
    x = 16,345.85

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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.