Home / 36,821.41-50,815.53-21,722.91

Finding the Fourth Proportional to 36,821.41, 50,815.53 and 21,722.91

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Solution

The fourth proportional to 36,821.41, 50,815.53 and 21,722.91 is: 29,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.41 : 50,815.53 = 21,722.91 : x
  2. Step 2: Convert to fraction form
    36,821.41/50,815.53 = 21,722.91/x
  3. Step 3: Cross multiply
    36,821.41x = 50,815.53 × 21,722.91
  4. Step 4: Simplify right side
    36,821.41x = 1,103,861,184.79
  5. Step 5: Solve for x
    x = 1,103,861,184.79/36,821.41
  6. Step 6: Final answer
    x = 29,978.79

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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.