Home / 20,170.08-30,255.54-7,346.80

Finding the Fourth Proportional to 20,170.08, 30,255.54 and 7,346.80

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Solution

The fourth proportional to 20,170.08, 30,255.54 and 7,346.80 is: 11,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.08 : 30,255.54 = 7,346.80 : x
  2. Step 2: Convert to fraction form
    20,170.08/30,255.54 = 7,346.80/x
  3. Step 3: Cross multiply
    20,170.08x = 30,255.54 × 7,346.80
  4. Step 4: Simplify right side
    20,170.08x = 222,281,401.27
  5. Step 5: Solve for x
    x = 222,281,401.27/20,170.08
  6. Step 6: Final answer
    x = 11,020.35

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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.