Home / 26,173.20-36,123.60-15,568.80

Finding the Fourth Proportional to 26,173.20, 36,123.60 and 15,568.80

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Solution

The fourth proportional to 26,173.20, 36,123.60 and 15,568.80 is: 21,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,173.20 : 36,123.60 = 15,568.80 : x
  2. Step 2: Convert to fraction form
    26,173.20/36,123.60 = 15,568.80/x
  3. Step 3: Cross multiply
    26,173.20x = 36,123.60 × 15,568.80
  4. Step 4: Simplify right side
    26,173.20x = 562,401,103.68
  5. Step 5: Solve for x
    x = 562,401,103.68/26,173.20
  6. Step 6: Final answer
    x = 21,487.67

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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.