Home / 31,137.12-46,705.50-12,163.68

Finding the Fourth Proportional to 31,137.12, 46,705.50 and 12,163.68

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Solution

The fourth proportional to 31,137.12, 46,705.50 and 12,163.68 is: 18,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,137.12 : 46,705.50 = 12,163.68 : x
  2. Step 2: Convert to fraction form
    31,137.12/46,705.50 = 12,163.68/x
  3. Step 3: Cross multiply
    31,137.12x = 46,705.50 × 12,163.68
  4. Step 4: Simplify right side
    31,137.12x = 568,110,756.24
  5. Step 5: Solve for x
    x = 568,110,756.24/31,137.12
  6. Step 6: Final answer
    x = 18,245.45

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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.