Home / 30,786.30-46,172.75-8,296.45

Finding the Fourth Proportional to 30,786.30, 46,172.75 and 8,296.45

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Solution

The fourth proportional to 30,786.30, 46,172.75 and 8,296.45 is: 12,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,786.30 : 46,172.75 = 8,296.45 : x
  2. Step 2: Convert to fraction form
    30,786.30/46,172.75 = 8,296.45/x
  3. Step 3: Cross multiply
    30,786.30x = 46,172.75 × 8,296.45
  4. Step 4: Simplify right side
    30,786.30x = 383,069,911.74
  5. Step 5: Solve for x
    x = 383,069,911.74/30,786.30
  6. Step 6: Final answer
    x = 12,442.87

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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.