Home / 20,015.77-30,007.45-8,337.73

Finding the Fourth Proportional to 20,015.77, 30,007.45 and 8,337.73

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Solution

The fourth proportional to 20,015.77, 30,007.45 and 8,337.73 is: 12,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.77 : 30,007.45 = 8,337.73 : x
  2. Step 2: Convert to fraction form
    20,015.77/30,007.45 = 8,337.73/x
  3. Step 3: Cross multiply
    20,015.77x = 30,007.45 × 8,337.73
  4. Step 4: Simplify right side
    20,015.77x = 250,194,016.09
  5. Step 5: Solve for x
    x = 250,194,016.09/20,015.77
  6. Step 6: Final answer
    x = 12,499.84

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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.