Home / 21,804.14-30,086.10-12,850.43

Finding the Fourth Proportional to 21,804.14, 30,086.10 and 12,850.43

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Solution

The fourth proportional to 21,804.14, 30,086.10 and 12,850.43 is: 17,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804.14 : 30,086.10 = 12,850.43 : x
  2. Step 2: Convert to fraction form
    21,804.14/30,086.10 = 12,850.43/x
  3. Step 3: Cross multiply
    21,804.14x = 30,086.10 × 12,850.43
  4. Step 4: Simplify right side
    21,804.14x = 386,619,322.02
  5. Step 5: Solve for x
    x = 386,619,322.02/21,804.14
  6. Step 6: Final answer
    x = 17,731.46

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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.