Home / 20,011.06-30,016.60-5,219.96

Finding the Fourth Proportional to 20,011.06, 30,016.60 and 5,219.96

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Solution

The fourth proportional to 20,011.06, 30,016.60 and 5,219.96 is: 7,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.06 : 30,016.60 = 5,219.96 : x
  2. Step 2: Convert to fraction form
    20,011.06/30,016.60 = 5,219.96/x
  3. Step 3: Cross multiply
    20,011.06x = 30,016.60 × 5,219.96
  4. Step 4: Simplify right side
    20,011.06x = 156,685,451.34
  5. Step 5: Solve for x
    x = 156,685,451.34/20,011.06
  6. Step 6: Final answer
    x = 7,829.94

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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.