Home / 19,616.94-27,057.68-12,900.42

Finding the Fourth Proportional to 19,616.94, 27,057.68 and 12,900.42

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Solution

The fourth proportional to 19,616.94, 27,057.68 and 12,900.42 is: 17,793.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.94 : 27,057.68 = 12,900.42 : x
  2. Step 2: Convert to fraction form
    19,616.94/27,057.68 = 12,900.42/x
  3. Step 3: Cross multiply
    19,616.94x = 27,057.68 × 12,900.42
  4. Step 4: Simplify right side
    19,616.94x = 349,055,436.23
  5. Step 5: Solve for x
    x = 349,055,436.23/19,616.94
  6. Step 6: Final answer
    x = 17,793.57

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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.