Home / 20,015.07-30,022.61-5,223.86

Finding the Fourth Proportional to 20,015.07, 30,022.61 and 5,223.86

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Solution

The fourth proportional to 20,015.07, 30,022.61 and 5,223.86 is: 7,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.07 : 30,022.61 = 5,223.86 : x
  2. Step 2: Convert to fraction form
    20,015.07/30,022.61 = 5,223.86/x
  3. Step 3: Cross multiply
    20,015.07x = 30,022.61 × 5,223.86
  4. Step 4: Simplify right side
    20,015.07x = 156,833,847.83
  5. Step 5: Solve for x
    x = 156,833,847.83/20,015.07
  6. Step 6: Final answer
    x = 7,835.79

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Similar ratio
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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.