Home / 22,213.04-30,653.44-12,786.80

Finding the Fourth Proportional to 22,213.04, 30,653.44 and 12,786.80

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Solution

The fourth proportional to 22,213.04, 30,653.44 and 12,786.80 is: 17,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,213.04 : 30,653.44 = 12,786.80 : x
  2. Step 2: Convert to fraction form
    22,213.04/30,653.44 = 12,786.80/x
  3. Step 3: Cross multiply
    22,213.04x = 30,653.44 × 12,786.80
  4. Step 4: Simplify right side
    22,213.04x = 391,959,406.59
  5. Step 5: Solve for x
    x = 391,959,406.59/22,213.04
  6. Step 6: Final answer
    x = 17,645.46

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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.