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Finding the Fourth Proportional to 28,673.56, 43,009.44 and 7,896.88

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Solution

The fourth proportional to 28,673.56, 43,009.44 and 7,896.88 is: 11,845.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.56 : 43,009.44 = 7,896.88 : x
  2. Step 2: Convert to fraction form
    28,673.56/43,009.44 = 7,896.88/x
  3. Step 3: Cross multiply
    28,673.56x = 43,009.44 × 7,896.88
  4. Step 4: Simplify right side
    28,673.56x = 339,640,386.55
  5. Step 5: Solve for x
    x = 339,640,386.55/28,673.56
  6. Step 6: Final answer
    x = 11,845.07

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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.