Home / 18,908.88-28,198.14-16,784.64

Finding the Fourth Proportional to 18,908.88, 28,198.14 and 16,784.64

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Solution

The fourth proportional to 18,908.88, 28,198.14 and 16,784.64 is: 25,030.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.88 : 28,198.14 = 16,784.64 : x
  2. Step 2: Convert to fraction form
    18,908.88/28,198.14 = 16,784.64/x
  3. Step 3: Cross multiply
    18,908.88x = 28,198.14 × 16,784.64
  4. Step 4: Simplify right side
    18,908.88x = 473,295,628.57
  5. Step 5: Solve for x
    x = 473,295,628.57/18,908.88
  6. Step 6: Final answer
    x = 25,030.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.