Home / 20,238.06-27,928.53-11,854.56

Finding the Fourth Proportional to 20,238.06, 27,928.53 and 11,854.56

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Solution

The fourth proportional to 20,238.06, 27,928.53 and 11,854.56 is: 16,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.06 : 27,928.53 = 11,854.56 : x
  2. Step 2: Convert to fraction form
    20,238.06/27,928.53 = 11,854.56/x
  3. Step 3: Cross multiply
    20,238.06x = 27,928.53 × 11,854.56
  4. Step 4: Simplify right side
    20,238.06x = 331,080,434.60
  5. Step 5: Solve for x
    x = 331,080,434.60/20,238.06
  6. Step 6: Final answer
    x = 16,359.30

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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.