Home / 38,644.20-57,960.90-12,351.60

Finding the Fourth Proportional to 38,644.20, 57,960.90 and 12,351.60

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Solution

The fourth proportional to 38,644.20, 57,960.90 and 12,351.60 is: 18,525.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.20 : 57,960.90 = 12,351.60 : x
  2. Step 2: Convert to fraction form
    38,644.20/57,960.90 = 12,351.60/x
  3. Step 3: Cross multiply
    38,644.20x = 57,960.90 × 12,351.60
  4. Step 4: Simplify right side
    38,644.20x = 715,909,852.44
  5. Step 5: Solve for x
    x = 715,909,852.44/38,644.20
  6. Step 6: Final answer
    x = 18,525.67

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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.