Home / 13,572.87-20,359.92-3,711.93

Finding the Fourth Proportional to 13,572.87, 20,359.92 and 3,711.93

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Solution

The fourth proportional to 13,572.87, 20,359.92 and 3,711.93 is: 5,568.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.87 : 20,359.92 = 3,711.93 : x
  2. Step 2: Convert to fraction form
    13,572.87/20,359.92 = 3,711.93/x
  3. Step 3: Cross multiply
    13,572.87x = 20,359.92 × 3,711.93
  4. Step 4: Simplify right side
    13,572.87x = 75,574,597.85
  5. Step 5: Solve for x
    x = 75,574,597.85/13,572.87
  6. Step 6: Final answer
    x = 5,568.06

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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.