Home / 36,330.73-54,520.90-12,638.05

Finding the Fourth Proportional to 36,330.73, 54,520.90 and 12,638.05

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Solution

The fourth proportional to 36,330.73, 54,520.90 and 12,638.05 is: 18,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,330.73 : 54,520.90 = 12,638.05 : x
  2. Step 2: Convert to fraction form
    36,330.73/54,520.90 = 12,638.05/x
  3. Step 3: Cross multiply
    36,330.73x = 54,520.90 × 12,638.05
  4. Step 4: Simplify right side
    36,330.73x = 689,037,692.35
  5. Step 5: Solve for x
    x = 689,037,692.35/36,330.73
  6. Step 6: Final answer
    x = 18,965.70

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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.