Home / 13,549.22-20,321.77-3,689.27

Finding the Fourth Proportional to 13,549.22, 20,321.77 and 3,689.27

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Solution

The fourth proportional to 13,549.22, 20,321.77 and 3,689.27 is: 5,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.22 : 20,321.77 = 3,689.27 : x
  2. Step 2: Convert to fraction form
    13,549.22/20,321.77 = 3,689.27/x
  3. Step 3: Cross multiply
    13,549.22x = 20,321.77 × 3,689.27
  4. Step 4: Simplify right side
    13,549.22x = 74,972,487.18
  5. Step 5: Solve for x
    x = 74,972,487.18/13,549.22
  6. Step 6: Final answer
    x = 5,533.35

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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.