Home / 22,142.25-30,556.44-12,206.25

Finding the Fourth Proportional to 22,142.25, 30,556.44 and 12,206.25

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Solution

The fourth proportional to 22,142.25, 30,556.44 and 12,206.25 is: 16,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.25 : 30,556.44 = 12,206.25 : x
  2. Step 2: Convert to fraction form
    22,142.25/30,556.44 = 12,206.25/x
  3. Step 3: Cross multiply
    22,142.25x = 30,556.44 × 12,206.25
  4. Step 4: Simplify right side
    22,142.25x = 372,979,545.75
  5. Step 5: Solve for x
    x = 372,979,545.75/22,142.25
  6. Step 6: Final answer
    x = 16,844.70

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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.