Home / 28,942.60-43,349.10-17,278.60

Finding the Fourth Proportional to 28,942.60, 43,349.10 and 17,278.60

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Solution

The fourth proportional to 28,942.60, 43,349.10 and 17,278.60 is: 25,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942.60 : 43,349.10 = 17,278.60 : x
  2. Step 2: Convert to fraction form
    28,942.60/43,349.10 = 17,278.60/x
  3. Step 3: Cross multiply
    28,942.60x = 43,349.10 × 17,278.60
  4. Step 4: Simplify right side
    28,942.60x = 749,011,759.26
  5. Step 5: Solve for x
    x = 749,011,759.26/28,942.60
  6. Step 6: Final answer
    x = 25,879.21

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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.