Home / 13,621.01-20,429.99-3,761.69

Finding the Fourth Proportional to 13,621.01, 20,429.99 and 3,761.69

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Solution

The fourth proportional to 13,621.01, 20,429.99 and 3,761.69 is: 5,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.01 : 20,429.99 = 3,761.69 : x
  2. Step 2: Convert to fraction form
    13,621.01/20,429.99 = 3,761.69/x
  3. Step 3: Cross multiply
    13,621.01x = 20,429.99 × 3,761.69
  4. Step 4: Simplify right side
    13,621.01x = 76,851,270.27
  5. Step 5: Solve for x
    x = 76,851,270.27/13,621.01
  6. Step 6: Final answer
    x = 5,642.11

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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.