Home / 28,917.80-43,376.70-17,090.60

Finding the Fourth Proportional to 28,917.80, 43,376.70 and 17,090.60

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Solution

The fourth proportional to 28,917.80, 43,376.70 and 17,090.60 is: 25,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.80 : 43,376.70 = 17,090.60 : x
  2. Step 2: Convert to fraction form
    28,917.80/43,376.70 = 17,090.60/x
  3. Step 3: Cross multiply
    28,917.80x = 43,376.70 × 17,090.60
  4. Step 4: Simplify right side
    28,917.80x = 741,333,829.02
  5. Step 5: Solve for x
    x = 741,333,829.02/28,917.80
  6. Step 6: Final answer
    x = 25,635.90

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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.