Home / 20,223.80-30,336.60-6,896.60

Finding the Fourth Proportional to 20,223.80, 30,336.60 and 6,896.60

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Solution

The fourth proportional to 20,223.80, 30,336.60 and 6,896.60 is: 10,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.80 : 30,336.60 = 6,896.60 : x
  2. Step 2: Convert to fraction form
    20,223.80/30,336.60 = 6,896.60/x
  3. Step 3: Cross multiply
    20,223.80x = 30,336.60 × 6,896.60
  4. Step 4: Simplify right side
    20,223.80x = 209,219,395.56
  5. Step 5: Solve for x
    x = 209,219,395.56/20,223.80
  6. Step 6: Final answer
    x = 10,345.21

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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.