Home / 38,099.89-57,128.99-30,252.81

Finding the Fourth Proportional to 38,099.89, 57,128.99 and 30,252.81

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Solution

The fourth proportional to 38,099.89, 57,128.99 and 30,252.81 is: 45,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,099.89 : 57,128.99 = 30,252.81 : x
  2. Step 2: Convert to fraction form
    38,099.89/57,128.99 = 30,252.81/x
  3. Step 3: Cross multiply
    38,099.89x = 57,128.99 × 30,252.81
  4. Step 4: Simplify right side
    38,099.89x = 1,728,312,450.59
  5. Step 5: Solve for x
    x = 1,728,312,450.59/38,099.89
  6. Step 6: Final answer
    x = 45,362.67

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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.