Home / 20,231.70-30,347.39-6,191.67

Finding the Fourth Proportional to 20,231.70, 30,347.39 and 6,191.67

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Solution

The fourth proportional to 20,231.70, 30,347.39 and 6,191.67 is: 9,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.70 : 30,347.39 = 6,191.67 : x
  2. Step 2: Convert to fraction form
    20,231.70/30,347.39 = 6,191.67/x
  3. Step 3: Cross multiply
    20,231.70x = 30,347.39 × 6,191.67
  4. Step 4: Simplify right side
    20,231.70x = 187,900,993.28
  5. Step 5: Solve for x
    x = 187,900,993.28/20,231.70
  6. Step 6: Final answer
    x = 9,287.45

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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.