Home / 30,340.75-41,870.44-16,912.86

Finding the Fourth Proportional to 30,340.75, 41,870.44 and 16,912.86

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Solution

The fourth proportional to 30,340.75, 41,870.44 and 16,912.86 is: 23,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.75 : 41,870.44 = 16,912.86 : x
  2. Step 2: Convert to fraction form
    30,340.75/41,870.44 = 16,912.86/x
  3. Step 3: Cross multiply
    30,340.75x = 41,870.44 × 16,912.86
  4. Step 4: Simplify right side
    30,340.75x = 708,148,889.86
  5. Step 5: Solve for x
    x = 708,148,889.86/30,340.75
  6. Step 6: Final answer
    x = 23,339.86

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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.