Home / 28,768.36-43,060.20-15,422.80

Finding the Fourth Proportional to 28,768.36, 43,060.20 and 15,422.80

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Solution

The fourth proportional to 28,768.36, 43,060.20 and 15,422.80 is: 23,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.36 : 43,060.20 = 15,422.80 : x
  2. Step 2: Convert to fraction form
    28,768.36/43,060.20 = 15,422.80/x
  3. Step 3: Cross multiply
    28,768.36x = 43,060.20 × 15,422.80
  4. Step 4: Simplify right side
    28,768.36x = 664,108,852.56
  5. Step 5: Solve for x
    x = 664,108,852.56/28,768.36
  6. Step 6: Final answer
    x = 23,084.70

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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.