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Finding the Fourth Proportional to 13,710.47, 20,565.81 and 3,322.22

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Solution

The fourth proportional to 13,710.47, 20,565.81 and 3,322.22 is: 4,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.47 : 20,565.81 = 3,322.22 : x
  2. Step 2: Convert to fraction form
    13,710.47/20,565.81 = 3,322.22/x
  3. Step 3: Cross multiply
    13,710.47x = 20,565.81 × 3,322.22
  4. Step 4: Simplify right side
    13,710.47x = 68,324,042.47
  5. Step 5: Solve for x
    x = 68,324,042.47/13,710.47
  6. Step 6: Final answer
    x = 4,983.35

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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.