Home / 20,071.44-30,090.78-11,730.96

Finding the Fourth Proportional to 20,071.44, 30,090.78 and 11,730.96

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Solution

The fourth proportional to 20,071.44, 30,090.78 and 11,730.96 is: 17,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.44 : 30,090.78 = 11,730.96 : x
  2. Step 2: Convert to fraction form
    20,071.44/30,090.78 = 11,730.96/x
  3. Step 3: Cross multiply
    20,071.44x = 30,090.78 × 11,730.96
  4. Step 4: Simplify right side
    20,071.44x = 352,993,736.55
  5. Step 5: Solve for x
    x = 352,993,736.55/20,071.44
  6. Step 6: Final answer
    x = 17,586.87

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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.