Home / 20,172.63-30,194.24-10,789.19

Finding the Fourth Proportional to 20,172.63, 30,194.24 and 10,789.19

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Solution

The fourth proportional to 20,172.63, 30,194.24 and 10,789.19 is: 16,149.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.63 : 30,194.24 = 10,789.19 : x
  2. Step 2: Convert to fraction form
    20,172.63/30,194.24 = 10,789.19/x
  3. Step 3: Cross multiply
    20,172.63x = 30,194.24 × 10,789.19
  4. Step 4: Simplify right side
    20,172.63x = 325,771,241.29
  5. Step 5: Solve for x
    x = 325,771,241.29/20,172.63
  6. Step 6: Final answer
    x = 16,149.17

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1.5x scale

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.