Home / 22,203.03-30,639.82-12,131.26

Finding the Fourth Proportional to 22,203.03, 30,639.82 and 12,131.26

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Solution

The fourth proportional to 22,203.03, 30,639.82 and 12,131.26 is: 16,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.03 : 30,639.82 = 12,131.26 : x
  2. Step 2: Convert to fraction form
    22,203.03/30,639.82 = 12,131.26/x
  3. Step 3: Cross multiply
    22,203.03x = 30,639.82 × 12,131.26
  4. Step 4: Simplify right side
    22,203.03x = 371,699,469.57
  5. Step 5: Solve for x
    x = 371,699,469.57/22,203.03
  6. Step 6: Final answer
    x = 16,740.93

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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.