Home / 22,205.36-30,645.53-12,135.33

Finding the Fourth Proportional to 22,205.36, 30,645.53 and 12,135.33

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Solution

The fourth proportional to 22,205.36, 30,645.53 and 12,135.33 is: 16,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.36 : 30,645.53 = 12,135.33 : x
  2. Step 2: Convert to fraction form
    22,205.36/30,645.53 = 12,135.33/x
  3. Step 3: Cross multiply
    22,205.36x = 30,645.53 × 12,135.33
  4. Step 4: Simplify right side
    22,205.36x = 371,893,558.90
  5. Step 5: Solve for x
    x = 371,893,558.90/22,205.36
  6. Step 6: Final answer
    x = 16,747.92

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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.