Home / 43,729.58-65,587.82-12,136.31

Finding the Fourth Proportional to 43,729.58, 65,587.82 and 12,136.31

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Solution

The fourth proportional to 43,729.58, 65,587.82 and 12,136.31 is: 18,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,729.58 : 65,587.82 = 12,136.31 : x
  2. Step 2: Convert to fraction form
    43,729.58/65,587.82 = 12,136.31/x
  3. Step 3: Cross multiply
    43,729.58x = 65,587.82 × 12,136.31
  4. Step 4: Simplify right side
    43,729.58x = 795,993,727.12
  5. Step 5: Solve for x
    x = 795,993,727.12/43,729.58
  6. Step 6: Final answer
    x = 18,202.64

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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.