Home / 19,014.60-28,521.90-5,163.60

Finding the Fourth Proportional to 19,014.60, 28,521.90 and 5,163.60

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Solution

The fourth proportional to 19,014.60, 28,521.90 and 5,163.60 is: 7,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,014.60 : 28,521.90 = 5,163.60 : x
  2. Step 2: Convert to fraction form
    19,014.60/28,521.90 = 5,163.60/x
  3. Step 3: Cross multiply
    19,014.60x = 28,521.90 × 5,163.60
  4. Step 4: Simplify right side
    19,014.60x = 147,275,682.84
  5. Step 5: Solve for x
    x = 147,275,682.84/19,014.60
  6. Step 6: Final answer
    x = 7,745.40

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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.