Home / 43,815.94-65,720.22-18,854.98

Finding the Fourth Proportional to 43,815.94, 65,720.22 and 18,854.98

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Solution

The fourth proportional to 43,815.94, 65,720.22 and 18,854.98 is: 28,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,815.94 : 65,720.22 = 18,854.98 : x
  2. Step 2: Convert to fraction form
    43,815.94/65,720.22 = 18,854.98/x
  3. Step 3: Cross multiply
    43,815.94x = 65,720.22 × 18,854.98
  4. Step 4: Simplify right side
    43,815.94x = 1,239,153,433.70
  5. Step 5: Solve for x
    x = 1,239,153,433.70/43,815.94
  6. Step 6: Final answer
    x = 28,280.88

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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.