Home / 28,617.44-42,912.54-8,896.28

Finding the Fourth Proportional to 28,617.44, 42,912.54 and 8,896.28

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Solution

The fourth proportional to 28,617.44, 42,912.54 and 8,896.28 is: 13,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.44 : 42,912.54 = 8,896.28 : x
  2. Step 2: Convert to fraction form
    28,617.44/42,912.54 = 8,896.28/x
  3. Step 3: Cross multiply
    28,617.44x = 42,912.54 × 8,896.28
  4. Step 4: Simplify right side
    28,617.44x = 381,761,971.35
  5. Step 5: Solve for x
    x = 381,761,971.35/28,617.44
  6. Step 6: Final answer
    x = 13,340.19

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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.