Home / 43,974.20-65,961.30-12,384.20

Finding the Fourth Proportional to 43,974.20, 65,961.30 and 12,384.20

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Solution

The fourth proportional to 43,974.20, 65,961.30 and 12,384.20 is: 18,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,974.20 : 65,961.30 = 12,384.20 : x
  2. Step 2: Convert to fraction form
    43,974.20/65,961.30 = 12,384.20/x
  3. Step 3: Cross multiply
    43,974.20x = 65,961.30 × 12,384.20
  4. Step 4: Simplify right side
    43,974.20x = 816,877,931.46
  5. Step 5: Solve for x
    x = 816,877,931.46/43,974.20
  6. Step 6: Final answer
    x = 18,576.30

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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.