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Finding the Fourth Proportional to 21,804.93, 30,093.53 and 12,376.53

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Solution

The fourth proportional to 21,804.93, 30,093.53 and 12,376.53 is: 17,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804.93 : 30,093.53 = 12,376.53 : x
  2. Step 2: Convert to fraction form
    21,804.93/30,093.53 = 12,376.53/x
  3. Step 3: Cross multiply
    21,804.93x = 30,093.53 × 12,376.53
  4. Step 4: Simplify right side
    21,804.93x = 372,453,414.97
  5. Step 5: Solve for x
    x = 372,453,414.97/21,804.93
  6. Step 6: Final answer
    x = 17,081.16

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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.