Home / 28,812.12-43,218.54-8,034.36

Finding the Fourth Proportional to 28,812.12, 43,218.54 and 8,034.36

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Solution

The fourth proportional to 28,812.12, 43,218.54 and 8,034.36 is: 12,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.12 : 43,218.54 = 8,034.36 : x
  2. Step 2: Convert to fraction form
    28,812.12/43,218.54 = 8,034.36/x
  3. Step 3: Cross multiply
    28,812.12x = 43,218.54 × 8,034.36
  4. Step 4: Simplify right side
    28,812.12x = 347,233,309.03
  5. Step 5: Solve for x
    x = 347,233,309.03/28,812.12
  6. Step 6: Final answer
    x = 12,051.64

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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.