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Finding the Fourth Proportional to 36,506.34, 50,369.22 and 21,390.88

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Solution

The fourth proportional to 36,506.34, 50,369.22 and 21,390.88 is: 29,513.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,506.34 : 50,369.22 = 21,390.88 : x
  2. Step 2: Convert to fraction form
    36,506.34/50,369.22 = 21,390.88/x
  3. Step 3: Cross multiply
    36,506.34x = 50,369.22 × 21,390.88
  4. Step 4: Simplify right side
    36,506.34x = 1,077,441,940.71
  5. Step 5: Solve for x
    x = 1,077,441,940.71/36,506.34
  6. Step 6: Final answer
    x = 29,513.83

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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.