Home / 30,508.94-42,105.87-18,579.26

Finding the Fourth Proportional to 30,508.94, 42,105.87 and 18,579.26

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Solution

The fourth proportional to 30,508.94, 42,105.87 and 18,579.26 is: 25,641.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.94 : 42,105.87 = 18,579.26 : x
  2. Step 2: Convert to fraction form
    30,508.94/42,105.87 = 18,579.26/x
  3. Step 3: Cross multiply
    30,508.94x = 42,105.87 × 18,579.26
  4. Step 4: Simplify right side
    30,508.94x = 782,295,906.26
  5. Step 5: Solve for x
    x = 782,295,906.26/30,508.94
  6. Step 6: Final answer
    x = 25,641.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.