Home / 20,610.86-28,441.26-11,656.31

Finding the Fourth Proportional to 20,610.86, 28,441.26 and 11,656.31

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Solution

The fourth proportional to 20,610.86, 28,441.26 and 11,656.31 is: 16,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.86 : 28,441.26 = 11,656.31 : x
  2. Step 2: Convert to fraction form
    20,610.86/28,441.26 = 11,656.31/x
  3. Step 3: Cross multiply
    20,610.86x = 28,441.26 × 11,656.31
  4. Step 4: Simplify right side
    20,610.86x = 331,520,001.14
  5. Step 5: Solve for x
    x = 331,520,001.14/20,610.86
  6. Step 6: Final answer
    x = 16,084.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.