Home / 20,238.15-27,917.42-11,853.03

Finding the Fourth Proportional to 20,238.15, 27,917.42 and 11,853.03

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Solution

The fourth proportional to 20,238.15, 27,917.42 and 11,853.03 is: 16,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.15 : 27,917.42 = 11,853.03 : x
  2. Step 2: Convert to fraction form
    20,238.15/27,917.42 = 11,853.03/x
  3. Step 3: Cross multiply
    20,238.15x = 27,917.42 × 11,853.03
  4. Step 4: Simplify right side
    20,238.15x = 330,905,957.52
  5. Step 5: Solve for x
    x = 330,905,957.52/20,238.15
  6. Step 6: Final answer
    x = 16,350.60

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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.