Home / 43,877.22-65,815.86-20,520.06

Finding the Fourth Proportional to 43,877.22, 65,815.86 and 20,520.06

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Solution

The fourth proportional to 43,877.22, 65,815.86 and 20,520.06 is: 30,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,877.22 : 65,815.86 = 20,520.06 : x
  2. Step 2: Convert to fraction form
    43,877.22/65,815.86 = 20,520.06/x
  3. Step 3: Cross multiply
    43,877.22x = 65,815.86 × 20,520.06
  4. Step 4: Simplify right side
    43,877.22x = 1,350,545,396.15
  5. Step 5: Solve for x
    x = 1,350,545,396.15/43,877.22
  6. Step 6: Final answer
    x = 30,780.10

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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.