Home / 30,990.68-46,485.62-7,617.32

Finding the Fourth Proportional to 30,990.68, 46,485.62 and 7,617.32

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Solution

The fourth proportional to 30,990.68, 46,485.62 and 7,617.32 is: 11,425.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.68 : 46,485.62 = 7,617.32 : x
  2. Step 2: Convert to fraction form
    30,990.68/46,485.62 = 7,617.32/x
  3. Step 3: Cross multiply
    30,990.68x = 46,485.62 × 7,617.32
  4. Step 4: Simplify right side
    30,990.68x = 354,095,842.94
  5. Step 5: Solve for x
    x = 354,095,842.94/30,990.68
  6. Step 6: Final answer
    x = 11,425.88

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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.