Home / 20,215.06-30,324.69-7,745.63

Finding the Fourth Proportional to 20,215.06, 30,324.69 and 7,745.63

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Solution

The fourth proportional to 20,215.06, 30,324.69 and 7,745.63 is: 11,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.06 : 30,324.69 = 7,745.63 : x
  2. Step 2: Convert to fraction form
    20,215.06/30,324.69 = 7,745.63/x
  3. Step 3: Cross multiply
    20,215.06x = 30,324.69 × 7,745.63
  4. Step 4: Simplify right side
    20,215.06x = 234,883,687.87
  5. Step 5: Solve for x
    x = 234,883,687.87/20,215.06
  6. Step 6: Final answer
    x = 11,619.24

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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.