Home / 30,037.88-45,021.62-12,257.44

Finding the Fourth Proportional to 30,037.88, 45,021.62 and 12,257.44

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Solution

The fourth proportional to 30,037.88, 45,021.62 and 12,257.44 is: 18,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,037.88 : 45,021.62 = 12,257.44 : x
  2. Step 2: Convert to fraction form
    30,037.88/45,021.62 = 12,257.44/x
  3. Step 3: Cross multiply
    30,037.88x = 45,021.62 × 12,257.44
  4. Step 4: Simplify right side
    30,037.88x = 551,849,805.85
  5. Step 5: Solve for x
    x = 551,849,805.85/30,037.88
  6. Step 6: Final answer
    x = 18,371.80

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1.5x scale

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.