Home / 28,692.75-43,037.43-12,893.70

Finding the Fourth Proportional to 28,692.75, 43,037.43 and 12,893.70

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Solution

The fourth proportional to 28,692.75, 43,037.43 and 12,893.70 is: 19,339.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.75 : 43,037.43 = 12,893.70 : x
  2. Step 2: Convert to fraction form
    28,692.75/43,037.43 = 12,893.70/x
  3. Step 3: Cross multiply
    28,692.75x = 43,037.43 × 12,893.70
  4. Step 4: Simplify right side
    28,692.75x = 554,911,711.19
  5. Step 5: Solve for x
    x = 554,911,711.19/28,692.75
  6. Step 6: Final answer
    x = 19,339.79

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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.