Home / 13,490.22-20,235.69-3,629.49

Finding the Fourth Proportional to 13,490.22, 20,235.69 and 3,629.49

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Solution

The fourth proportional to 13,490.22, 20,235.69 and 3,629.49 is: 5,444.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.22 : 20,235.69 = 3,629.49 : x
  2. Step 2: Convert to fraction form
    13,490.22/20,235.69 = 3,629.49/x
  3. Step 3: Cross multiply
    13,490.22x = 20,235.69 × 3,629.49
  4. Step 4: Simplify right side
    13,490.22x = 73,445,234.50
  5. Step 5: Solve for x
    x = 73,445,234.50/13,490.22
  6. Step 6: Final answer
    x = 5,444.33

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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.