Home / 28,936.10-43,319.10-21,573.20

Finding the Fourth Proportional to 28,936.10, 43,319.10 and 21,573.20

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Solution

The fourth proportional to 28,936.10, 43,319.10 and 21,573.20 is: 32,296.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.10 : 43,319.10 = 21,573.20 : x
  2. Step 2: Convert to fraction form
    28,936.10/43,319.10 = 21,573.20/x
  3. Step 3: Cross multiply
    28,936.10x = 43,319.10 × 21,573.20
  4. Step 4: Simplify right side
    28,936.10x = 934,531,608.12
  5. Step 5: Solve for x
    x = 934,531,608.12/28,936.10
  6. Step 6: Final answer
    x = 32,296.39

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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.