Home / 20,539.19-30,790.06-7,388.55

Finding the Fourth Proportional to 20,539.19, 30,790.06 and 7,388.55

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Solution

The fourth proportional to 20,539.19, 30,790.06 and 7,388.55 is: 11,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.19 : 30,790.06 = 7,388.55 : x
  2. Step 2: Convert to fraction form
    20,539.19/30,790.06 = 7,388.55/x
  3. Step 3: Cross multiply
    20,539.19x = 30,790.06 × 7,388.55
  4. Step 4: Simplify right side
    20,539.19x = 227,493,879.34
  5. Step 5: Solve for x
    x = 227,493,879.34/20,539.19
  6. Step 6: Final answer
    x = 11,076.09

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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.