Home / 28,663.96-43,012.70-12,022.55

Finding the Fourth Proportional to 28,663.96, 43,012.70 and 12,022.55

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Solution

The fourth proportional to 28,663.96, 43,012.70 and 12,022.55 is: 18,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.96 : 43,012.70 = 12,022.55 : x
  2. Step 2: Convert to fraction form
    28,663.96/43,012.70 = 12,022.55/x
  3. Step 3: Cross multiply
    28,663.96x = 43,012.70 × 12,022.55
  4. Step 4: Simplify right side
    28,663.96x = 517,122,336.39
  5. Step 5: Solve for x
    x = 517,122,336.39/28,663.96
  6. Step 6: Final answer
    x = 18,040.85

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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.