Home / 43,990.26-65,989.27-12,400.59

Finding the Fourth Proportional to 43,990.26, 65,989.27 and 12,400.59

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Solution

The fourth proportional to 43,990.26, 65,989.27 and 12,400.59 is: 18,601.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,990.26 : 65,989.27 = 12,400.59 : x
  2. Step 2: Convert to fraction form
    43,990.26/65,989.27 = 12,400.59/x
  3. Step 3: Cross multiply
    43,990.26x = 65,989.27 × 12,400.59
  4. Step 4: Simplify right side
    43,990.26x = 818,305,551.72
  5. Step 5: Solve for x
    x = 818,305,551.72/43,990.26
  6. Step 6: Final answer
    x = 18,601.97

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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.