Home / 30,876.37-46,376.55-18,420.73

Finding the Fourth Proportional to 30,876.37, 46,376.55 and 18,420.73

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Solution

The fourth proportional to 30,876.37, 46,376.55 and 18,420.73 is: 27,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.37 : 46,376.55 = 18,420.73 : x
  2. Step 2: Convert to fraction form
    30,876.37/46,376.55 = 18,420.73/x
  3. Step 3: Cross multiply
    30,876.37x = 46,376.55 × 18,420.73
  4. Step 4: Simplify right side
    30,876.37x = 854,289,789.94
  5. Step 5: Solve for x
    x = 854,289,789.94/30,876.37
  6. Step 6: Final answer
    x = 27,668.08

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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.