Home / 20,113.37-30,170.37-7,630.10

Finding the Fourth Proportional to 20,113.37, 30,170.37 and 7,630.10

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Solution

The fourth proportional to 20,113.37, 30,170.37 and 7,630.10 is: 11,445.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.37 : 30,170.37 = 7,630.10 : x
  2. Step 2: Convert to fraction form
    20,113.37/30,170.37 = 7,630.10/x
  3. Step 3: Cross multiply
    20,113.37x = 30,170.37 × 7,630.10
  4. Step 4: Simplify right side
    20,113.37x = 230,202,940.14
  5. Step 5: Solve for x
    x = 230,202,940.14/20,113.37
  6. Step 6: Final answer
    x = 11,445.27

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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.