Home / 28,816.20-43,221.06-7,758.36

Finding the Fourth Proportional to 28,816.20, 43,221.06 and 7,758.36

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Solution

The fourth proportional to 28,816.20, 43,221.06 and 7,758.36 is: 11,636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.20 : 43,221.06 = 7,758.36 : x
  2. Step 2: Convert to fraction form
    28,816.20/43,221.06 = 7,758.36/x
  3. Step 3: Cross multiply
    28,816.20x = 43,221.06 × 7,758.36
  4. Step 4: Simplify right side
    28,816.20x = 335,324,543.06
  5. Step 5: Solve for x
    x = 335,324,543.06/28,816.20
  6. Step 6: Final answer
    x = 11,636.67

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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.