Home / 21,286.44-29,374.32-12,333.24

Finding the Fourth Proportional to 21,286.44, 29,374.32 and 12,333.24

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Solution

The fourth proportional to 21,286.44, 29,374.32 and 12,333.24 is: 17,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.44 : 29,374.32 = 12,333.24 : x
  2. Step 2: Convert to fraction form
    21,286.44/29,374.32 = 12,333.24/x
  3. Step 3: Cross multiply
    21,286.44x = 29,374.32 × 12,333.24
  4. Step 4: Simplify right side
    21,286.44x = 362,280,538.40
  5. Step 5: Solve for x
    x = 362,280,538.40/21,286.44
  6. Step 6: Final answer
    x = 17,019.31

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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.