Home / 19,976.82-27,579.06-12,021

Finding the Fourth Proportional to 19,976.82, 27,579.06 and 12,021

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Solution

The fourth proportional to 19,976.82, 27,579.06 and 12,021 is: 16,595.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.82 : 27,579.06 = 12,021 : x
  2. Step 2: Convert to fraction form
    19,976.82/27,579.06 = 12,021/x
  3. Step 3: Cross multiply
    19,976.82x = 27,579.06 × 12,021
  4. Step 4: Simplify right side
    19,976.82x = 331,527,880.26
  5. Step 5: Solve for x
    x = 331,527,880.26/19,976.82
  6. Step 6: Final answer
    x = 16,595.63

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1.5x scale

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.