Home / 30,418.46-41,976.61-16,989.32

Finding the Fourth Proportional to 30,418.46, 41,976.61 and 16,989.32

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Solution

The fourth proportional to 30,418.46, 41,976.61 and 16,989.32 is: 23,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.46 : 41,976.61 = 16,989.32 : x
  2. Step 2: Convert to fraction form
    30,418.46/41,976.61 = 16,989.32/x
  3. Step 3: Cross multiply
    30,418.46x = 41,976.61 × 16,989.32
  4. Step 4: Simplify right side
    30,418.46x = 713,154,059.81
  5. Step 5: Solve for x
    x = 713,154,059.81/30,418.46
  6. Step 6: Final answer
    x = 23,444.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.