Home / 28,768.85-43,157.93-8,507.66

Finding the Fourth Proportional to 28,768.85, 43,157.93 and 8,507.66

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Solution

The fourth proportional to 28,768.85, 43,157.93 and 8,507.66 is: 12,762.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.85 : 43,157.93 = 8,507.66 : x
  2. Step 2: Convert to fraction form
    28,768.85/43,157.93 = 8,507.66/x
  3. Step 3: Cross multiply
    28,768.85x = 43,157.93 × 8,507.66
  4. Step 4: Simplify right side
    28,768.85x = 367,172,952.21
  5. Step 5: Solve for x
    x = 367,172,952.21/28,768.85
  6. Step 6: Final answer
    x = 12,762.87

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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.