Home / 30,172.31-41,639.21-16,743.68

Finding the Fourth Proportional to 30,172.31, 41,639.21 and 16,743.68

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Solution

The fourth proportional to 30,172.31, 41,639.21 and 16,743.68 is: 23,107.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.31 : 41,639.21 = 16,743.68 : x
  2. Step 2: Convert to fraction form
    30,172.31/41,639.21 = 16,743.68/x
  3. Step 3: Cross multiply
    30,172.31x = 41,639.21 × 16,743.68
  4. Step 4: Simplify right side
    30,172.31x = 697,193,628.90
  5. Step 5: Solve for x
    x = 697,193,628.90/30,172.31
  6. Step 6: Final answer
    x = 23,107.06

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1.5x scale

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.