Home / 13,583.76-20,382.66-5,790.48

Finding the Fourth Proportional to 13,583.76, 20,382.66 and 5,790.48

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Solution

The fourth proportional to 13,583.76, 20,382.66 and 5,790.48 is: 8,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.76 : 20,382.66 = 5,790.48 : x
  2. Step 2: Convert to fraction form
    13,583.76/20,382.66 = 5,790.48/x
  3. Step 3: Cross multiply
    13,583.76x = 20,382.66 × 5,790.48
  4. Step 4: Simplify right side
    13,583.76x = 118,025,385.08
  5. Step 5: Solve for x
    x = 118,025,385.08/13,583.76
  6. Step 6: Final answer
    x = 8,688.71

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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.