Home / 28,300.92-42,453.94-11,657.08

Finding the Fourth Proportional to 28,300.92, 42,453.94 and 11,657.08

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Solution

The fourth proportional to 28,300.92, 42,453.94 and 11,657.08 is: 17,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.92 : 42,453.94 = 11,657.08 : x
  2. Step 2: Convert to fraction form
    28,300.92/42,453.94 = 11,657.08/x
  3. Step 3: Cross multiply
    28,300.92x = 42,453.94 × 11,657.08
  4. Step 4: Simplify right side
    28,300.92x = 494,888,974.90
  5. Step 5: Solve for x
    x = 494,888,974.90/28,300.92
  6. Step 6: Final answer
    x = 17,486.67

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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.