Home / 30,893.20-46,339.80-18,427.30

Finding the Fourth Proportional to 30,893.20, 46,339.80 and 18,427.30

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Solution

The fourth proportional to 30,893.20, 46,339.80 and 18,427.30 is: 27,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,893.20 : 46,339.80 = 18,427.30 : x
  2. Step 2: Convert to fraction form
    30,893.20/46,339.80 = 18,427.30/x
  3. Step 3: Cross multiply
    30,893.20x = 46,339.80 × 18,427.30
  4. Step 4: Simplify right side
    30,893.20x = 853,917,396.54
  5. Step 5: Solve for x
    x = 853,917,396.54/30,893.20
  6. Step 6: Final answer
    x = 27,640.95

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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.