Home / 36,915.21-50,933.21-20,997.09

Finding the Fourth Proportional to 36,915.21, 50,933.21 and 20,997.09

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Solution

The fourth proportional to 36,915.21, 50,933.21 and 20,997.09 is: 28,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,915.21 : 50,933.21 = 20,997.09 : x
  2. Step 2: Convert to fraction form
    36,915.21/50,933.21 = 20,997.09/x
  3. Step 3: Cross multiply
    36,915.21x = 50,933.21 × 20,997.09
  4. Step 4: Simplify right side
    36,915.21x = 1,069,449,089.37
  5. Step 5: Solve for x
    x = 1,069,449,089.37/36,915.21
  6. Step 6: Final answer
    x = 28,970.42

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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.