Home / 43,991.21-65,986.82-14,409.20

Finding the Fourth Proportional to 43,991.21, 65,986.82 and 14,409.20

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Solution

The fourth proportional to 43,991.21, 65,986.82 and 14,409.20 is: 21,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,991.21 : 65,986.82 = 14,409.20 : x
  2. Step 2: Convert to fraction form
    43,991.21/65,986.82 = 14,409.20/x
  3. Step 3: Cross multiply
    43,991.21x = 65,986.82 × 14,409.20
  4. Step 4: Simplify right side
    43,991.21x = 950,817,286.74
  5. Step 5: Solve for x
    x = 950,817,286.74/43,991.21
  6. Step 6: Final answer
    x = 21,613.80

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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.