Home / 20,606.94-30,912.84-15,445.62

Finding the Fourth Proportional to 20,606.94, 30,912.84 and 15,445.62

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Solution

The fourth proportional to 20,606.94, 30,912.84 and 15,445.62 is: 23,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.94 : 30,912.84 = 15,445.62 : x
  2. Step 2: Convert to fraction form
    20,606.94/30,912.84 = 15,445.62/x
  3. Step 3: Cross multiply
    20,606.94x = 30,912.84 × 15,445.62
  4. Step 4: Simplify right side
    20,606.94x = 477,467,979.76
  5. Step 5: Solve for x
    x = 477,467,979.76/20,606.94
  6. Step 6: Final answer
    x = 23,170.25

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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.