Home / 30,847.37-46,270.86-8,660.76

Finding the Fourth Proportional to 30,847.37, 46,270.86 and 8,660.76

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Solution

The fourth proportional to 30,847.37, 46,270.86 and 8,660.76 is: 12,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,847.37 : 46,270.86 = 8,660.76 : x
  2. Step 2: Convert to fraction form
    30,847.37/46,270.86 = 8,660.76/x
  3. Step 3: Cross multiply
    30,847.37x = 46,270.86 × 8,660.76
  4. Step 4: Simplify right side
    30,847.37x = 400,740,813.45
  5. Step 5: Solve for x
    x = 400,740,813.45/30,847.37
  6. Step 6: Final answer
    x = 12,991.09

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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.