Home / 22,203.87-30,640.82-12,132.33

Finding the Fourth Proportional to 22,203.87, 30,640.82 and 12,132.33

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Solution

The fourth proportional to 22,203.87, 30,640.82 and 12,132.33 is: 16,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.87 : 30,640.82 = 12,132.33 : x
  2. Step 2: Convert to fraction form
    22,203.87/30,640.82 = 12,132.33/x
  3. Step 3: Cross multiply
    22,203.87x = 30,640.82 × 12,132.33
  4. Step 4: Simplify right side
    22,203.87x = 371,744,364.15
  5. Step 5: Solve for x
    x = 371,744,364.15/22,203.87
  6. Step 6: Final answer
    x = 16,742.33

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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.