Home / 13,621.17-20,433.81-4,855.41

Finding the Fourth Proportional to 13,621.17, 20,433.81 and 4,855.41

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Solution

The fourth proportional to 13,621.17, 20,433.81 and 4,855.41 is: 7,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.17 : 20,433.81 = 4,855.41 : x
  2. Step 2: Convert to fraction form
    13,621.17/20,433.81 = 4,855.41/x
  3. Step 3: Cross multiply
    13,621.17x = 20,433.81 × 4,855.41
  4. Step 4: Simplify right side
    13,621.17x = 99,214,525.41
  5. Step 5: Solve for x
    x = 99,214,525.41/13,621.17
  6. Step 6: Final answer
    x = 7,283.85

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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.