Home / 36,000.60-54,017.10-12,643.80

Finding the Fourth Proportional to 36,000.60, 54,017.10 and 12,643.80

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Solution

The fourth proportional to 36,000.60, 54,017.10 and 12,643.80 is: 18,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,000.60 : 54,017.10 = 12,643.80 : x
  2. Step 2: Convert to fraction form
    36,000.60/54,017.10 = 12,643.80/x
  3. Step 3: Cross multiply
    36,000.60x = 54,017.10 × 12,643.80
  4. Step 4: Simplify right side
    36,000.60x = 682,981,408.98
  5. Step 5: Solve for x
    x = 682,981,408.98/36,000.60
  6. Step 6: Final answer
    x = 18,971.39

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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.