Home / 13,632.22-20,448.31-4,272.96

Finding the Fourth Proportional to 13,632.22, 20,448.31 and 4,272.96

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Solution

The fourth proportional to 13,632.22, 20,448.31 and 4,272.96 is: 6,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.22 : 20,448.31 = 4,272.96 : x
  2. Step 2: Convert to fraction form
    13,632.22/20,448.31 = 4,272.96/x
  3. Step 3: Cross multiply
    13,632.22x = 20,448.31 × 4,272.96
  4. Step 4: Simplify right side
    13,632.22x = 87,374,810.70
  5. Step 5: Solve for x
    x = 87,374,810.70/13,632.22
  6. Step 6: Final answer
    x = 6,409.43

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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.