Home / 27,659.09-38,073.60-20,932.85

Finding the Fourth Proportional to 27,659.09, 38,073.60 and 20,932.85

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Solution

The fourth proportional to 27,659.09, 38,073.60 and 20,932.85 is: 28,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,659.09 : 38,073.60 = 20,932.85 : x
  2. Step 2: Convert to fraction form
    27,659.09/38,073.60 = 20,932.85/x
  3. Step 3: Cross multiply
    27,659.09x = 38,073.60 × 20,932.85
  4. Step 4: Simplify right side
    27,659.09x = 796,989,052.94
  5. Step 5: Solve for x
    x = 796,989,052.94/27,659.09
  6. Step 6: Final answer
    x = 28,814.72

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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.