Home / 43,986.24-65,974.16-12,398.67

Finding the Fourth Proportional to 43,986.24, 65,974.16 and 12,398.67

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Solution

The fourth proportional to 43,986.24, 65,974.16 and 12,398.67 is: 18,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,986.24 : 65,974.16 = 12,398.67 : x
  2. Step 2: Convert to fraction form
    43,986.24/65,974.16 = 12,398.67/x
  3. Step 3: Cross multiply
    43,986.24x = 65,974.16 × 12,398.67
  4. Step 4: Simplify right side
    43,986.24x = 817,991,869.36
  5. Step 5: Solve for x
    x = 817,991,869.36/43,986.24
  6. Step 6: Final answer
    x = 18,596.54

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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.