Home / 28,764.36-43,054.20-15,418.80

Finding the Fourth Proportional to 28,764.36, 43,054.20 and 15,418.80

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Solution

The fourth proportional to 28,764.36, 43,054.20 and 15,418.80 is: 23,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.36 : 43,054.20 = 15,418.80 : x
  2. Step 2: Convert to fraction form
    28,764.36/43,054.20 = 15,418.80/x
  3. Step 3: Cross multiply
    28,764.36x = 43,054.20 × 15,418.80
  4. Step 4: Simplify right side
    28,764.36x = 663,844,098.96
  5. Step 5: Solve for x
    x = 663,844,098.96/28,764.36
  6. Step 6: Final answer
    x = 23,078.70

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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.