Home / 21,120.46-31,685.24-6,330.67

Finding the Fourth Proportional to 21,120.46, 31,685.24 and 6,330.67

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Solution

The fourth proportional to 21,120.46, 31,685.24 and 6,330.67 is: 9,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120.46 : 31,685.24 = 6,330.67 : x
  2. Step 2: Convert to fraction form
    21,120.46/31,685.24 = 6,330.67/x
  3. Step 3: Cross multiply
    21,120.46x = 31,685.24 × 6,330.67
  4. Step 4: Simplify right side
    21,120.46x = 200,588,734.92
  5. Step 5: Solve for x
    x = 200,588,734.92/21,120.46
  6. Step 6: Final answer
    x = 9,497.37

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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.