Home / 43,913.96-65,872.75-12,749.21

Finding the Fourth Proportional to 43,913.96, 65,872.75 and 12,749.21

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Solution

The fourth proportional to 43,913.96, 65,872.75 and 12,749.21 is: 19,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,913.96 : 65,872.75 = 12,749.21 : x
  2. Step 2: Convert to fraction form
    43,913.96/65,872.75 = 12,749.21/x
  3. Step 3: Cross multiply
    43,913.96x = 65,872.75 × 12,749.21
  4. Step 4: Simplify right side
    43,913.96x = 839,825,193.66
  5. Step 5: Solve for x
    x = 839,825,193.66/43,913.96
  6. Step 6: Final answer
    x = 19,124.34

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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.