Home / 22,540.16-33,758.40-12,664.64

Finding the Fourth Proportional to 22,540.16, 33,758.40 and 12,664.64

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Solution

The fourth proportional to 22,540.16, 33,758.40 and 12,664.64 is: 18,967.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,540.16 : 33,758.40 = 12,664.64 : x
  2. Step 2: Convert to fraction form
    22,540.16/33,758.40 = 12,664.64/x
  3. Step 3: Cross multiply
    22,540.16x = 33,758.40 × 12,664.64
  4. Step 4: Simplify right side
    22,540.16x = 427,537,982.98
  5. Step 5: Solve for x
    x = 427,537,982.98/22,540.16
  6. Step 6: Final answer
    x = 18,967.83

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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.