Home / 43,815.68-65,737.60-18,842.88

Finding the Fourth Proportional to 43,815.68, 65,737.60 and 18,842.88

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Solution

The fourth proportional to 43,815.68, 65,737.60 and 18,842.88 is: 28,270.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,815.68 : 65,737.60 = 18,842.88 : x
  2. Step 2: Convert to fraction form
    43,815.68/65,737.60 = 18,842.88/x
  3. Step 3: Cross multiply
    43,815.68x = 65,737.60 × 18,842.88
  4. Step 4: Simplify right side
    43,815.68x = 1,238,685,708.29
  5. Step 5: Solve for x
    x = 1,238,685,708.29/43,815.68
  6. Step 6: Final answer
    x = 28,270.38

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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.