Home / 20,101.94-30,150.34-5,311.96

Finding the Fourth Proportional to 20,101.94, 30,150.34 and 5,311.96

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Solution

The fourth proportional to 20,101.94, 30,150.34 and 5,311.96 is: 7,967.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.94 : 30,150.34 = 5,311.96 : x
  2. Step 2: Convert to fraction form
    20,101.94/30,150.34 = 5,311.96/x
  3. Step 3: Cross multiply
    20,101.94x = 30,150.34 × 5,311.96
  4. Step 4: Simplify right side
    20,101.94x = 160,157,400.07
  5. Step 5: Solve for x
    x = 160,157,400.07/20,101.94
  6. Step 6: Final answer
    x = 7,967.26

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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.