Home / 20,409.07-30,604.36-7,261.78

Finding the Fourth Proportional to 20,409.07, 30,604.36 and 7,261.78

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Solution

The fourth proportional to 20,409.07, 30,604.36 and 7,261.78 is: 10,889.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.07 : 30,604.36 = 7,261.78 : x
  2. Step 2: Convert to fraction form
    20,409.07/30,604.36 = 7,261.78/x
  3. Step 3: Cross multiply
    20,409.07x = 30,604.36 × 7,261.78
  4. Step 4: Simplify right side
    20,409.07x = 222,242,093.05
  5. Step 5: Solve for x
    x = 222,242,093.05/20,409.07
  6. Step 6: Final answer
    x = 10,889.38

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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.