Home / 19,190.37-28,816.81-11,841.54

Finding the Fourth Proportional to 19,190.37, 28,816.81 and 11,841.54

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Solution

The fourth proportional to 19,190.37, 28,816.81 and 11,841.54 is: 17,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.37 : 28,816.81 = 11,841.54 : x
  2. Step 2: Convert to fraction form
    19,190.37/28,816.81 = 11,841.54/x
  3. Step 3: Cross multiply
    19,190.37x = 28,816.81 × 11,841.54
  4. Step 4: Simplify right side
    19,190.37x = 341,235,499.32
  5. Step 5: Solve for x
    x = 341,235,499.32/19,190.37
  6. Step 6: Final answer
    x = 17,781.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.