Home / 20,212.30-30,318.45-17,004.70

Finding the Fourth Proportional to 20,212.30, 30,318.45 and 17,004.70

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Solution

The fourth proportional to 20,212.30, 30,318.45 and 17,004.70 is: 25,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.30 : 30,318.45 = 17,004.70 : x
  2. Step 2: Convert to fraction form
    20,212.30/30,318.45 = 17,004.70/x
  3. Step 3: Cross multiply
    20,212.30x = 30,318.45 × 17,004.70
  4. Step 4: Simplify right side
    20,212.30x = 515,556,146.72
  5. Step 5: Solve for x
    x = 515,556,146.72/20,212.30
  6. Step 6: Final answer
    x = 25,507.05

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Similar ratio
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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.