Home / 28,780.56-43,171.65-8,004.06

Finding the Fourth Proportional to 28,780.56, 43,171.65 and 8,004.06

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Solution

The fourth proportional to 28,780.56, 43,171.65 and 8,004.06 is: 12,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.56 : 43,171.65 = 8,004.06 : x
  2. Step 2: Convert to fraction form
    28,780.56/43,171.65 = 8,004.06/x
  3. Step 3: Cross multiply
    28,780.56x = 43,171.65 × 8,004.06
  4. Step 4: Simplify right side
    28,780.56x = 345,548,476.90
  5. Step 5: Solve for x
    x = 345,548,476.90/28,780.56
  6. Step 6: Final answer
    x = 12,006.32

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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.