Home / 18,891.36-28,189.44-16,923.60

Finding the Fourth Proportional to 18,891.36, 28,189.44 and 16,923.60

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Solution

The fourth proportional to 18,891.36, 28,189.44 and 16,923.60 is: 25,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.36 : 28,189.44 = 16,923.60 : x
  2. Step 2: Convert to fraction form
    18,891.36/28,189.44 = 16,923.60/x
  3. Step 3: Cross multiply
    18,891.36x = 28,189.44 × 16,923.60
  4. Step 4: Simplify right side
    18,891.36x = 477,066,806.78
  5. Step 5: Solve for x
    x = 477,066,806.78/18,891.36
  6. Step 6: Final answer
    x = 25,253.17

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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.