Home / 36,006.60-54,026.10-12,649.80

Finding the Fourth Proportional to 36,006.60, 54,026.10 and 12,649.80

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Solution

The fourth proportional to 36,006.60, 54,026.10 and 12,649.80 is: 18,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,006.60 : 54,026.10 = 12,649.80 : x
  2. Step 2: Convert to fraction form
    36,006.60/54,026.10 = 12,649.80/x
  3. Step 3: Cross multiply
    36,006.60x = 54,026.10 × 12,649.80
  4. Step 4: Simplify right side
    36,006.60x = 683,419,359.78
  5. Step 5: Solve for x
    x = 683,419,359.78/36,006.60
  6. Step 6: Final answer
    x = 18,980.39

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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.