Home / 20,217.87-30,307.62-7,061.67

Finding the Fourth Proportional to 20,217.87, 30,307.62 and 7,061.67

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Solution

The fourth proportional to 20,217.87, 30,307.62 and 7,061.67 is: 10,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.87 : 30,307.62 = 7,061.67 : x
  2. Step 2: Convert to fraction form
    20,217.87/30,307.62 = 7,061.67/x
  3. Step 3: Cross multiply
    20,217.87x = 30,307.62 × 7,061.67
  4. Step 4: Simplify right side
    20,217.87x = 214,022,410.93
  5. Step 5: Solve for x
    x = 214,022,410.93/20,217.87
  6. Step 6: Final answer
    x = 10,585.80

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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.