Home / 22,239.22-30,690.86-12,167.44

Finding the Fourth Proportional to 22,239.22, 30,690.86 and 12,167.44

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Solution

The fourth proportional to 22,239.22, 30,690.86 and 12,167.44 is: 16,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,239.22 : 30,690.86 = 12,167.44 : x
  2. Step 2: Convert to fraction form
    22,239.22/30,690.86 = 12,167.44/x
  3. Step 3: Cross multiply
    22,239.22x = 30,690.86 × 12,167.44
  4. Step 4: Simplify right side
    22,239.22x = 373,429,197.60
  5. Step 5: Solve for x
    x = 373,429,197.60/22,239.22
  6. Step 6: Final answer
    x = 16,791.47

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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.