Home / 28,778.06-43,167.90-8,001.56

Finding the Fourth Proportional to 28,778.06, 43,167.90 and 8,001.56

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Solution

The fourth proportional to 28,778.06, 43,167.90 and 8,001.56 is: 12,002.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.06 : 43,167.90 = 8,001.56 : x
  2. Step 2: Convert to fraction form
    28,778.06/43,167.90 = 8,001.56/x
  3. Step 3: Cross multiply
    28,778.06x = 43,167.90 × 8,001.56
  4. Step 4: Simplify right side
    28,778.06x = 345,410,541.92
  5. Step 5: Solve for x
    x = 345,410,541.92/28,778.06
  6. Step 6: Final answer
    x = 12,002.57

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1.5x scale

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.