Home / 30,929.45-46,388.34-8,742.65

Finding the Fourth Proportional to 30,929.45, 46,388.34 and 8,742.65

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Solution

The fourth proportional to 30,929.45, 46,388.34 and 8,742.65 is: 13,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,929.45 : 46,388.34 = 8,742.65 : x
  2. Step 2: Convert to fraction form
    30,929.45/46,388.34 = 8,742.65/x
  3. Step 3: Cross multiply
    30,929.45x = 46,388.34 × 8,742.65
  4. Step 4: Simplify right side
    30,929.45x = 405,556,788.76
  5. Step 5: Solve for x
    x = 405,556,788.76/30,929.45
  6. Step 6: Final answer
    x = 13,112.32

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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.