Home / 43,575.15-65,361.82-11,985.08

Finding the Fourth Proportional to 43,575.15, 65,361.82 and 11,985.08

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Solution

The fourth proportional to 43,575.15, 65,361.82 and 11,985.08 is: 17,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,575.15 : 65,361.82 = 11,985.08 : x
  2. Step 2: Convert to fraction form
    43,575.15/65,361.82 = 11,985.08/x
  3. Step 3: Cross multiply
    43,575.15x = 65,361.82 × 11,985.08
  4. Step 4: Simplify right side
    43,575.15x = 783,366,641.65
  5. Step 5: Solve for x
    x = 783,366,641.65/43,575.15
  6. Step 6: Final answer
    x = 17,977.37

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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.