Home / 43,683.72-65,514.74-18,720.94

Finding the Fourth Proportional to 43,683.72, 65,514.74 and 18,720.94

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Solution

The fourth proportional to 43,683.72, 65,514.74 and 18,720.94 is: 28,076.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,683.72 : 65,514.74 = 18,720.94 : x
  2. Step 2: Convert to fraction form
    43,683.72/65,514.74 = 18,720.94/x
  3. Step 3: Cross multiply
    43,683.72x = 65,514.74 × 18,720.94
  4. Step 4: Simplify right side
    43,683.72x = 1,226,497,516.66
  5. Step 5: Solve for x
    x = 1,226,497,516.66/43,683.72
  6. Step 6: Final answer
    x = 28,076.76

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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.