Home / 20,255.48-30,362.37-7,772.18

Finding the Fourth Proportional to 20,255.48, 30,362.37 and 7,772.18

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Solution

The fourth proportional to 20,255.48, 30,362.37 and 7,772.18 is: 11,650.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.48 : 30,362.37 = 7,772.18 : x
  2. Step 2: Convert to fraction form
    20,255.48/30,362.37 = 7,772.18/x
  3. Step 3: Cross multiply
    20,255.48x = 30,362.37 × 7,772.18
  4. Step 4: Simplify right side
    20,255.48x = 235,981,804.87
  5. Step 5: Solve for x
    x = 235,981,804.87/20,255.48
  6. Step 6: Final answer
    x = 11,650.27

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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.