Home / 43,580.58-65,398.46-18,620.75

Finding the Fourth Proportional to 43,580.58, 65,398.46 and 18,620.75

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Solution

The fourth proportional to 43,580.58, 65,398.46 and 18,620.75 is: 27,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,580.58 : 65,398.46 = 18,620.75 : x
  2. Step 2: Convert to fraction form
    43,580.58/65,398.46 = 18,620.75/x
  3. Step 3: Cross multiply
    43,580.58x = 65,398.46 × 18,620.75
  4. Step 4: Simplify right side
    43,580.58x = 1,217,767,953.95
  5. Step 5: Solve for x
    x = 1,217,767,953.95/43,580.58
  6. Step 6: Final answer
    x = 27,942.90

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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.