Home / 28,808.96-39,761.52-16,871.60

Finding the Fourth Proportional to 28,808.96, 39,761.52 and 16,871.60

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Solution

The fourth proportional to 28,808.96, 39,761.52 and 16,871.60 is: 23,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.96 : 39,761.52 = 16,871.60 : x
  2. Step 2: Convert to fraction form
    28,808.96/39,761.52 = 16,871.60/x
  3. Step 3: Cross multiply
    28,808.96x = 39,761.52 × 16,871.60
  4. Step 4: Simplify right side
    28,808.96x = 670,840,460.83
  5. Step 5: Solve for x
    x = 670,840,460.83/28,808.96
  6. Step 6: Final answer
    x = 23,285.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.