Home / 28,628.20-42,949.62-8,906.93

Finding the Fourth Proportional to 28,628.20, 42,949.62 and 8,906.93

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Solution

The fourth proportional to 28,628.20, 42,949.62 and 8,906.93 is: 13,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.20 : 42,949.62 = 8,906.93 : x
  2. Step 2: Convert to fraction form
    28,628.20/42,949.62 = 8,906.93/x
  3. Step 3: Cross multiply
    28,628.20x = 42,949.62 × 8,906.93
  4. Step 4: Simplify right side
    28,628.20x = 382,549,258.87
  5. Step 5: Solve for x
    x = 382,549,258.87/28,628.20
  6. Step 6: Final answer
    x = 13,362.67

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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.