Home / 36,814.40-55,221.60-12,190.40

Finding the Fourth Proportional to 36,814.40, 55,221.60 and 12,190.40

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Solution

The fourth proportional to 36,814.40, 55,221.60 and 12,190.40 is: 18,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,814.40 : 55,221.60 = 12,190.40 : x
  2. Step 2: Convert to fraction form
    36,814.40/55,221.60 = 12,190.40/x
  3. Step 3: Cross multiply
    36,814.40x = 55,221.60 × 12,190.40
  4. Step 4: Simplify right side
    36,814.40x = 673,173,392.64
  5. Step 5: Solve for x
    x = 673,173,392.64/36,814.40
  6. Step 6: Final answer
    x = 18,285.60

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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.