Home / 21,904.56-30,228.68-12,474

Finding the Fourth Proportional to 21,904.56, 30,228.68 and 12,474

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Solution

The fourth proportional to 21,904.56, 30,228.68 and 12,474 is: 17,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.56 : 30,228.68 = 12,474 : x
  2. Step 2: Convert to fraction form
    21,904.56/30,228.68 = 12,474/x
  3. Step 3: Cross multiply
    21,904.56x = 30,228.68 × 12,474
  4. Step 4: Simplify right side
    21,904.56x = 377,072,554.32
  5. Step 5: Solve for x
    x = 377,072,554.32/21,904.56
  6. Step 6: Final answer
    x = 17,214.34

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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.