Home / 43,580.44-65,371.57-12,415.69

Finding the Fourth Proportional to 43,580.44, 65,371.57 and 12,415.69

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Solution

The fourth proportional to 43,580.44, 65,371.57 and 12,415.69 is: 18,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,580.44 : 65,371.57 = 12,415.69 : x
  2. Step 2: Convert to fraction form
    43,580.44/65,371.57 = 12,415.69/x
  3. Step 3: Cross multiply
    43,580.44x = 65,371.57 × 12,415.69
  4. Step 4: Simplify right side
    43,580.44x = 811,633,147.93
  5. Step 5: Solve for x
    x = 811,633,147.93/43,580.44
  6. Step 6: Final answer
    x = 18,623.79

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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.