Home / 43,508.86-65,231.36-13,909.66

Finding the Fourth Proportional to 43,508.86, 65,231.36 and 13,909.66

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Solution

The fourth proportional to 43,508.86, 65,231.36 and 13,909.66 is: 20,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,508.86 : 65,231.36 = 13,909.66 : x
  2. Step 2: Convert to fraction form
    43,508.86/65,231.36 = 13,909.66/x
  3. Step 3: Cross multiply
    43,508.86x = 65,231.36 × 13,909.66
  4. Step 4: Simplify right side
    43,508.86x = 907,345,747.55
  5. Step 5: Solve for x
    x = 907,345,747.55/43,508.86
  6. Step 6: Final answer
    x = 20,854.28

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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.