Home / 30,172.35-41,638.30-16,744.47

Finding the Fourth Proportional to 30,172.35, 41,638.30 and 16,744.47

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Solution

The fourth proportional to 30,172.35, 41,638.30 and 16,744.47 is: 23,107.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.35 : 41,638.30 = 16,744.47 : x
  2. Step 2: Convert to fraction form
    30,172.35/41,638.30 = 16,744.47/x
  3. Step 3: Cross multiply
    30,172.35x = 41,638.30 × 16,744.47
  4. Step 4: Simplify right side
    30,172.35x = 697,211,265.20
  5. Step 5: Solve for x
    x = 697,211,265.20/30,172.35
  6. Step 6: Final answer
    x = 23,107.62

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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.