Home / 22,656.90-34,121.09-20,636.82

Finding the Fourth Proportional to 22,656.90, 34,121.09 and 20,636.82

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Solution

The fourth proportional to 22,656.90, 34,121.09 and 20,636.82 is: 31,078.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,656.90 : 34,121.09 = 20,636.82 : x
  2. Step 2: Convert to fraction form
    22,656.90/34,121.09 = 20,636.82/x
  3. Step 3: Cross multiply
    22,656.90x = 34,121.09 × 20,636.82
  4. Step 4: Simplify right side
    22,656.90x = 704,150,689.35
  5. Step 5: Solve for x
    x = 704,150,689.35/22,656.90
  6. Step 6: Final answer
    x = 31,078.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.