Home / 22,215.65-30,657.66-12,144.21

Finding the Fourth Proportional to 22,215.65, 30,657.66 and 12,144.21

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Solution

The fourth proportional to 22,215.65, 30,657.66 and 12,144.21 is: 16,759.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.65 : 30,657.66 = 12,144.21 : x
  2. Step 2: Convert to fraction form
    22,215.65/30,657.66 = 12,144.21/x
  3. Step 3: Cross multiply
    22,215.65x = 30,657.66 × 12,144.21
  4. Step 4: Simplify right side
    22,215.65x = 372,313,015.61
  5. Step 5: Solve for x
    x = 372,313,015.61/22,215.65
  6. Step 6: Final answer
    x = 16,759.04

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Double scale
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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.