Home / 20,199.58-30,303.46-8,512.80

Finding the Fourth Proportional to 20,199.58, 30,303.46 and 8,512.80

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Solution

The fourth proportional to 20,199.58, 30,303.46 and 8,512.80 is: 12,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.58 : 30,303.46 = 8,512.80 : x
  2. Step 2: Convert to fraction form
    20,199.58/30,303.46 = 8,512.80/x
  3. Step 3: Cross multiply
    20,199.58x = 30,303.46 × 8,512.80
  4. Step 4: Simplify right side
    20,199.58x = 257,967,294.29
  5. Step 5: Solve for x
    x = 257,967,294.29/20,199.58
  6. Step 6: Final answer
    x = 12,770.92

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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.