Home / 28,745.30-43,103.36-13,149.56

Finding the Fourth Proportional to 28,745.30, 43,103.36 and 13,149.56

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Solution

The fourth proportional to 28,745.30, 43,103.36 and 13,149.56 is: 19,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.30 : 43,103.36 = 13,149.56 : x
  2. Step 2: Convert to fraction form
    28,745.30/43,103.36 = 13,149.56/x
  3. Step 3: Cross multiply
    28,745.30x = 43,103.36 × 13,149.56
  4. Step 4: Simplify right side
    28,745.30x = 566,790,359.15
  5. Step 5: Solve for x
    x = 566,790,359.15/28,745.30
  6. Step 6: Final answer
    x = 19,717.67

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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.