Home / 30,929.70-46,389.41-8,738.01

Finding the Fourth Proportional to 30,929.70, 46,389.41 and 8,738.01

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Solution

The fourth proportional to 30,929.70, 46,389.41 and 8,738.01 is: 13,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,929.70 : 46,389.41 = 8,738.01 : x
  2. Step 2: Convert to fraction form
    30,929.70/46,389.41 = 8,738.01/x
  3. Step 3: Cross multiply
    30,929.70x = 46,389.41 × 8,738.01
  4. Step 4: Simplify right side
    30,929.70x = 405,351,084.78
  5. Step 5: Solve for x
    x = 405,351,084.78/30,929.70
  6. Step 6: Final answer
    x = 13,105.56

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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.