Home / 20,213.08-30,328.44-7,074.88

Finding the Fourth Proportional to 20,213.08, 30,328.44 and 7,074.88

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Solution

The fourth proportional to 20,213.08, 30,328.44 and 7,074.88 is: 10,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.08 : 30,328.44 = 7,074.88 : x
  2. Step 2: Convert to fraction form
    20,213.08/30,328.44 = 7,074.88/x
  3. Step 3: Cross multiply
    20,213.08x = 30,328.44 × 7,074.88
  4. Step 4: Simplify right side
    20,213.08x = 214,570,073.59
  5. Step 5: Solve for x
    x = 214,570,073.59/20,213.08
  6. Step 6: Final answer
    x = 10,615.41

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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.