Home / 20,169.32-30,231.56-15,222.92

Finding the Fourth Proportional to 20,169.32, 30,231.56 and 15,222.92

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Solution

The fourth proportional to 20,169.32, 30,231.56 and 15,222.92 is: 22,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.32 : 30,231.56 = 15,222.92 : x
  2. Step 2: Convert to fraction form
    20,169.32/30,231.56 = 15,222.92/x
  3. Step 3: Cross multiply
    20,169.32x = 30,231.56 × 15,222.92
  4. Step 4: Simplify right side
    20,169.32x = 460,212,619.36
  5. Step 5: Solve for x
    x = 460,212,619.36/20,169.32
  6. Step 6: Final answer
    x = 22,817.46

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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.