Home / 20,108.25-27,752.63-11,723.13

Finding the Fourth Proportional to 20,108.25, 27,752.63 and 11,723.13

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Solution

The fourth proportional to 20,108.25, 27,752.63 and 11,723.13 is: 16,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.25 : 27,752.63 = 11,723.13 : x
  2. Step 2: Convert to fraction form
    20,108.25/27,752.63 = 11,723.13/x
  3. Step 3: Cross multiply
    20,108.25x = 27,752.63 × 11,723.13
  4. Step 4: Simplify right side
    20,108.25x = 325,347,630.72
  5. Step 5: Solve for x
    x = 325,347,630.72/20,108.25
  6. Step 6: Final answer
    x = 16,179.81

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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.