Home / 23,179.20-34,768.80-12,811.20

Finding the Fourth Proportional to 23,179.20, 34,768.80 and 12,811.20

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Solution

The fourth proportional to 23,179.20, 34,768.80 and 12,811.20 is: 19,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.20 : 34,768.80 = 12,811.20 : x
  2. Step 2: Convert to fraction form
    23,179.20/34,768.80 = 12,811.20/x
  3. Step 3: Cross multiply
    23,179.20x = 34,768.80 × 12,811.20
  4. Step 4: Simplify right side
    23,179.20x = 445,430,050.56
  5. Step 5: Solve for x
    x = 445,430,050.56/23,179.20
  6. Step 6: Final answer
    x = 19,216.80

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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.