Home / 16,379.40-24,581.30-12,172.34

Finding the Fourth Proportional to 16,379.40, 24,581.30 and 12,172.34

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Solution

The fourth proportional to 16,379.40, 24,581.30 and 12,172.34 is: 18,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,379.40 : 24,581.30 = 12,172.34 : x
  2. Step 2: Convert to fraction form
    16,379.40/24,581.30 = 12,172.34/x
  3. Step 3: Cross multiply
    16,379.40x = 24,581.30 × 12,172.34
  4. Step 4: Simplify right side
    16,379.40x = 299,211,880.38
  5. Step 5: Solve for x
    x = 299,211,880.38/16,379.40
  6. Step 6: Final answer
    x = 18,267.58

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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.