Home / 22,761.88-34,147.74-12,905.80

Finding the Fourth Proportional to 22,761.88, 34,147.74 and 12,905.80

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Solution

The fourth proportional to 22,761.88, 34,147.74 and 12,905.80 is: 19,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,761.88 : 34,147.74 = 12,905.80 : x
  2. Step 2: Convert to fraction form
    22,761.88/34,147.74 = 12,905.80/x
  3. Step 3: Cross multiply
    22,761.88x = 34,147.74 × 12,905.80
  4. Step 4: Simplify right side
    22,761.88x = 440,703,902.89
  5. Step 5: Solve for x
    x = 440,703,902.89/22,761.88
  6. Step 6: Final answer
    x = 19,361.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.