Home / 30,873.86-46,334.20-20,340.28

Finding the Fourth Proportional to 30,873.86, 46,334.20 and 20,340.28

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Solution

The fourth proportional to 30,873.86, 46,334.20 and 20,340.28 is: 30,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,873.86 : 46,334.20 = 20,340.28 : x
  2. Step 2: Convert to fraction form
    30,873.86/46,334.20 = 20,340.28/x
  3. Step 3: Cross multiply
    30,873.86x = 46,334.20 × 20,340.28
  4. Step 4: Simplify right side
    30,873.86x = 942,450,601.58
  5. Step 5: Solve for x
    x = 942,450,601.58/30,873.86
  6. Step 6: Final answer
    x = 30,525.84

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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.