Home / 22,215.62-30,657.99-12,144.68

Finding the Fourth Proportional to 22,215.62, 30,657.99 and 12,144.68

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Solution

The fourth proportional to 22,215.62, 30,657.99 and 12,144.68 is: 16,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.62 : 30,657.99 = 12,144.68 : x
  2. Step 2: Convert to fraction form
    22,215.62/30,657.99 = 12,144.68/x
  3. Step 3: Cross multiply
    22,215.62x = 30,657.99 × 12,144.68
  4. Step 4: Simplify right side
    22,215.62x = 372,331,657.66
  5. Step 5: Solve for x
    x = 372,331,657.66/22,215.62
  6. Step 6: Final answer
    x = 16,759.91

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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.