Home / 43,872.75-65,815.61-12,703.95

Finding the Fourth Proportional to 43,872.75, 65,815.61 and 12,703.95

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Solution

The fourth proportional to 43,872.75, 65,815.61 and 12,703.95 is: 19,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,872.75 : 65,815.61 = 12,703.95 : x
  2. Step 2: Convert to fraction form
    43,872.75/65,815.61 = 12,703.95/x
  3. Step 3: Cross multiply
    43,872.75x = 65,815.61 × 12,703.95
  4. Step 4: Simplify right side
    43,872.75x = 836,118,155.14
  5. Step 5: Solve for x
    x = 836,118,155.14/43,872.75
  6. Step 6: Final answer
    x = 19,057.80

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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.