Home / 43,986.32-65,982.30-15,519.78

Finding the Fourth Proportional to 43,986.32, 65,982.30 and 15,519.78

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Solution

The fourth proportional to 43,986.32, 65,982.30 and 15,519.78 is: 23,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,986.32 : 65,982.30 = 15,519.78 : x
  2. Step 2: Convert to fraction form
    43,986.32/65,982.30 = 15,519.78/x
  3. Step 3: Cross multiply
    43,986.32x = 65,982.30 × 15,519.78
  4. Step 4: Simplify right side
    43,986.32x = 1,024,030,779.89
  5. Step 5: Solve for x
    x = 1,024,030,779.89/43,986.32
  6. Step 6: Final answer
    x = 23,280.66

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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.