Home / 25,481.57-38,212.63-12,152.21

Finding the Fourth Proportional to 25,481.57, 38,212.63 and 12,152.21

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Solution

The fourth proportional to 25,481.57, 38,212.63 and 12,152.21 is: 18,223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,481.57 : 38,212.63 = 12,152.21 : x
  2. Step 2: Convert to fraction form
    25,481.57/38,212.63 = 12,152.21/x
  3. Step 3: Cross multiply
    25,481.57x = 38,212.63 × 12,152.21
  4. Step 4: Simplify right side
    25,481.57x = 464,367,682.97
  5. Step 5: Solve for x
    x = 464,367,682.97/25,481.57
  6. Step 6: Final answer
    x = 18,223.67

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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.