Home / 19,040.44-28,560.64-5,189.44

Finding the Fourth Proportional to 19,040.44, 28,560.64 and 5,189.44

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Solution

The fourth proportional to 19,040.44, 28,560.64 and 5,189.44 is: 7,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.44 : 28,560.64 = 5,189.44 : x
  2. Step 2: Convert to fraction form
    19,040.44/28,560.64 = 5,189.44/x
  3. Step 3: Cross multiply
    19,040.44x = 28,560.64 × 5,189.44
  4. Step 4: Simplify right side
    19,040.44x = 148,213,727.64
  5. Step 5: Solve for x
    x = 148,213,727.64/19,040.44
  6. Step 6: Final answer
    x = 7,784.15

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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.