Home / 43,974.90-65,942.91-12,812.58

Finding the Fourth Proportional to 43,974.90, 65,942.91 and 12,812.58

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Solution

The fourth proportional to 43,974.90, 65,942.91 and 12,812.58 is: 19,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,974.90 : 65,942.91 = 12,812.58 : x
  2. Step 2: Convert to fraction form
    43,974.90/65,942.91 = 12,812.58/x
  3. Step 3: Cross multiply
    43,974.90x = 65,942.91 × 12,812.58
  4. Step 4: Simplify right side
    43,974.90x = 844,898,809.81
  5. Step 5: Solve for x
    x = 844,898,809.81/43,974.90
  6. Step 6: Final answer
    x = 19,213.21

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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.