Home / 28,814.40-43,221.60-8,037.90

Finding the Fourth Proportional to 28,814.40, 43,221.60 and 8,037.90

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Solution

The fourth proportional to 28,814.40, 43,221.60 and 8,037.90 is: 12,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,814.40 : 43,221.60 = 8,037.90 : x
  2. Step 2: Convert to fraction form
    28,814.40/43,221.60 = 8,037.90/x
  3. Step 3: Cross multiply
    28,814.40x = 43,221.60 × 8,037.90
  4. Step 4: Simplify right side
    28,814.40x = 347,410,898.64
  5. Step 5: Solve for x
    x = 347,410,898.64/28,814.40
  6. Step 6: Final answer
    x = 12,056.85

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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.