Home / 43,660.67-65,436.20-18,671.32

Finding the Fourth Proportional to 43,660.67, 65,436.20 and 18,671.32

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Solution

The fourth proportional to 43,660.67, 65,436.20 and 18,671.32 is: 27,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,660.67 : 65,436.20 = 18,671.32 : x
  2. Step 2: Convert to fraction form
    43,660.67/65,436.20 = 18,671.32/x
  3. Step 3: Cross multiply
    43,660.67x = 65,436.20 × 18,671.32
  4. Step 4: Simplify right side
    43,660.67x = 1,221,779,972.84
  5. Step 5: Solve for x
    x = 1,221,779,972.84/43,660.67
  6. Step 6: Final answer
    x = 27,983.54

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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.