Home / 28,678.22-43,015.80-8,954.52

Finding the Fourth Proportional to 28,678.22, 43,015.80 and 8,954.52

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Solution

The fourth proportional to 28,678.22, 43,015.80 and 8,954.52 is: 13,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.22 : 43,015.80 = 8,954.52 : x
  2. Step 2: Convert to fraction form
    28,678.22/43,015.80 = 8,954.52/x
  3. Step 3: Cross multiply
    28,678.22x = 43,015.80 × 8,954.52
  4. Step 4: Simplify right side
    28,678.22x = 385,185,841.42
  5. Step 5: Solve for x
    x = 385,185,841.42/28,678.22
  6. Step 6: Final answer
    x = 13,431.30

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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.