Home / 13,848.12-20,772.22-3,459.86

Finding the Fourth Proportional to 13,848.12, 20,772.22 and 3,459.86

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Solution

The fourth proportional to 13,848.12, 20,772.22 and 3,459.86 is: 5,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.12 : 20,772.22 = 3,459.86 : x
  2. Step 2: Convert to fraction form
    13,848.12/20,772.22 = 3,459.86/x
  3. Step 3: Cross multiply
    13,848.12x = 20,772.22 × 3,459.86
  4. Step 4: Simplify right side
    13,848.12x = 71,868,973.09
  5. Step 5: Solve for x
    x = 71,868,973.09/13,848.12
  6. Step 6: Final answer
    x = 5,189.80

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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.