Home / 13,622.56-20,435.02-3,761.85

Finding the Fourth Proportional to 13,622.56, 20,435.02 and 3,761.85

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Solution

The fourth proportional to 13,622.56, 20,435.02 and 3,761.85 is: 5,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.56 : 20,435.02 = 3,761.85 : x
  2. Step 2: Convert to fraction form
    13,622.56/20,435.02 = 3,761.85/x
  3. Step 3: Cross multiply
    13,622.56x = 20,435.02 × 3,761.85
  4. Step 4: Simplify right side
    13,622.56x = 76,873,377.81
  5. Step 5: Solve for x
    x = 76,873,377.81/13,622.56
  6. Step 6: Final answer
    x = 5,643.09

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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.