Home / 20,408.20-30,586.74-11,048.20

Finding the Fourth Proportional to 20,408.20, 30,586.74 and 11,048.20

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Solution

The fourth proportional to 20,408.20, 30,586.74 and 11,048.20 is: 16,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.20 : 30,586.74 = 11,048.20 : x
  2. Step 2: Convert to fraction form
    20,408.20/30,586.74 = 11,048.20/x
  3. Step 3: Cross multiply
    20,408.20x = 30,586.74 × 11,048.20
  4. Step 4: Simplify right side
    20,408.20x = 337,928,420.87
  5. Step 5: Solve for x
    x = 337,928,420.87/20,408.20
  6. Step 6: Final answer
    x = 16,558.46

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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.