Home / 28,761.14-43,155.31-12,124.98

Finding the Fourth Proportional to 28,761.14, 43,155.31 and 12,124.98

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Solution

The fourth proportional to 28,761.14, 43,155.31 and 12,124.98 is: 18,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,761.14 : 43,155.31 = 12,124.98 : x
  2. Step 2: Convert to fraction form
    28,761.14/43,155.31 = 12,124.98/x
  3. Step 3: Cross multiply
    28,761.14x = 43,155.31 × 12,124.98
  4. Step 4: Simplify right side
    28,761.14x = 523,257,270.64
  5. Step 5: Solve for x
    x = 523,257,270.64/28,761.14
  6. Step 6: Final answer
    x = 18,193.20

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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.