Home / 13,621.01-20,429.18-3,625.89

Finding the Fourth Proportional to 13,621.01, 20,429.18 and 3,625.89

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Solution

The fourth proportional to 13,621.01, 20,429.18 and 3,625.89 is: 5,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.01 : 20,429.18 = 3,625.89 : x
  2. Step 2: Convert to fraction form
    13,621.01/20,429.18 = 3,625.89/x
  3. Step 3: Cross multiply
    13,621.01x = 20,429.18 × 3,625.89
  4. Step 4: Simplify right side
    13,621.01x = 74,073,878.33
  5. Step 5: Solve for x
    x = 74,073,878.33/13,621.01
  6. Step 6: Final answer
    x = 5,438.21

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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.