Home / 15,355.20-23,019.30-10,408.80

Finding the Fourth Proportional to 15,355.20, 23,019.30 and 10,408.80

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Solution

The fourth proportional to 15,355.20, 23,019.30 and 10,408.80 is: 15,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,355.20 : 23,019.30 = 10,408.80 : x
  2. Step 2: Convert to fraction form
    15,355.20/23,019.30 = 10,408.80/x
  3. Step 3: Cross multiply
    15,355.20x = 23,019.30 × 10,408.80
  4. Step 4: Simplify right side
    15,355.20x = 239,603,289.84
  5. Step 5: Solve for x
    x = 239,603,289.84/15,355.20
  6. Step 6: Final answer
    x = 15,604.05

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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.