Home / 28,640.32-42,964.24-10,626.09

Finding the Fourth Proportional to 28,640.32, 42,964.24 and 10,626.09

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Solution

The fourth proportional to 28,640.32, 42,964.24 and 10,626.09 is: 15,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.32 : 42,964.24 = 10,626.09 : x
  2. Step 2: Convert to fraction form
    28,640.32/42,964.24 = 10,626.09/x
  3. Step 3: Cross multiply
    28,640.32x = 42,964.24 × 10,626.09
  4. Step 4: Simplify right side
    28,640.32x = 456,542,041.18
  5. Step 5: Solve for x
    x = 456,542,041.18/28,640.32
  6. Step 6: Final answer
    x = 15,940.54

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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.