Home / 22,261.89-30,721.46-12,190.99

Finding the Fourth Proportional to 22,261.89, 30,721.46 and 12,190.99

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Solution

The fourth proportional to 22,261.89, 30,721.46 and 12,190.99 is: 16,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.89 : 30,721.46 = 12,190.99 : x
  2. Step 2: Convert to fraction form
    22,261.89/30,721.46 = 12,190.99/x
  3. Step 3: Cross multiply
    22,261.89x = 30,721.46 × 12,190.99
  4. Step 4: Simplify right side
    22,261.89x = 374,525,011.65
  5. Step 5: Solve for x
    x = 374,525,011.65/22,261.89
  6. Step 6: Final answer
    x = 16,823.59

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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.