Home / 28,768.52-43,155.84-8,777.96

Finding the Fourth Proportional to 28,768.52, 43,155.84 and 8,777.96

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Solution

The fourth proportional to 28,768.52, 43,155.84 and 8,777.96 is: 13,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.52 : 43,155.84 = 8,777.96 : x
  2. Step 2: Convert to fraction form
    28,768.52/43,155.84 = 8,777.96/x
  3. Step 3: Cross multiply
    28,768.52x = 43,155.84 × 8,777.96
  4. Step 4: Simplify right side
    28,768.52x = 378,820,237.29
  5. Step 5: Solve for x
    x = 378,820,237.29/28,768.52
  6. Step 6: Final answer
    x = 13,167.87

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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.