Home / 28,671.98-43,006.26-8,947.76

Finding the Fourth Proportional to 28,671.98, 43,006.26 and 8,947.76

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Solution

The fourth proportional to 28,671.98, 43,006.26 and 8,947.76 is: 13,421.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671.98 : 43,006.26 = 8,947.76 : x
  2. Step 2: Convert to fraction form
    28,671.98/43,006.26 = 8,947.76/x
  3. Step 3: Cross multiply
    28,671.98x = 43,006.26 × 8,947.76
  4. Step 4: Simplify right side
    28,671.98x = 384,809,692.98
  5. Step 5: Solve for x
    x = 384,809,692.98/28,671.98
  6. Step 6: Final answer
    x = 13,421.11

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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.