Home / 36,143.40-54,204.68-12,449.99

Finding the Fourth Proportional to 36,143.40, 54,204.68 and 12,449.99

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Solution

The fourth proportional to 36,143.40, 54,204.68 and 12,449.99 is: 18,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.40 : 54,204.68 = 12,449.99 : x
  2. Step 2: Convert to fraction form
    36,143.40/54,204.68 = 12,449.99/x
  3. Step 3: Cross multiply
    36,143.40x = 54,204.68 × 12,449.99
  4. Step 4: Simplify right side
    36,143.40x = 674,847,390.68
  5. Step 5: Solve for x
    x = 674,847,390.68/36,143.40
  6. Step 6: Final answer
    x = 18,671.39

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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.