Home / 21,982.84-30,335.66-12,549.56

Finding the Fourth Proportional to 21,982.84, 30,335.66 and 12,549.56

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Solution

The fourth proportional to 21,982.84, 30,335.66 and 12,549.56 is: 17,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.84 : 30,335.66 = 12,549.56 : x
  2. Step 2: Convert to fraction form
    21,982.84/30,335.66 = 12,549.56/x
  3. Step 3: Cross multiply
    21,982.84x = 30,335.66 × 12,549.56
  4. Step 4: Simplify right side
    21,982.84x = 380,699,185.31
  5. Step 5: Solve for x
    x = 380,699,185.31/21,982.84
  6. Step 6: Final answer
    x = 17,318.02

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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.