Home / 13,432.47-20,143.48-4,545.42

Finding the Fourth Proportional to 13,432.47, 20,143.48 and 4,545.42

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Solution

The fourth proportional to 13,432.47, 20,143.48 and 4,545.42 is: 6,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.47 : 20,143.48 = 4,545.42 : x
  2. Step 2: Convert to fraction form
    13,432.47/20,143.48 = 4,545.42/x
  3. Step 3: Cross multiply
    13,432.47x = 20,143.48 × 4,545.42
  4. Step 4: Simplify right side
    13,432.47x = 91,560,576.86
  5. Step 5: Solve for x
    x = 91,560,576.86/13,432.47
  6. Step 6: Final answer
    x = 6,816.36

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