Home / 13,621.34-20,433.19-3,760.62

Finding the Fourth Proportional to 13,621.34, 20,433.19 and 3,760.62

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Solution

The fourth proportional to 13,621.34, 20,433.19 and 3,760.62 is: 5,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.34 : 20,433.19 = 3,760.62 : x
  2. Step 2: Convert to fraction form
    13,621.34/20,433.19 = 3,760.62/x
  3. Step 3: Cross multiply
    13,621.34x = 20,433.19 × 3,760.62
  4. Step 4: Simplify right side
    13,621.34x = 76,841,498.94
  5. Step 5: Solve for x
    x = 76,841,498.94/13,621.34
  6. Step 6: Final answer
    x = 5,641.26

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1.5x scale

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.