Home / 28,910.40-43,365.60-8,133.90

Finding the Fourth Proportional to 28,910.40, 43,365.60 and 8,133.90

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Solution

The fourth proportional to 28,910.40, 43,365.60 and 8,133.90 is: 12,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.40 : 43,365.60 = 8,133.90 : x
  2. Step 2: Convert to fraction form
    28,910.40/43,365.60 = 8,133.90/x
  3. Step 3: Cross multiply
    28,910.40x = 43,365.60 × 8,133.90
  4. Step 4: Simplify right side
    28,910.40x = 352,731,453.84
  5. Step 5: Solve for x
    x = 352,731,453.84/28,910.40
  6. Step 6: Final answer
    x = 12,200.85

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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.