Home / 20,192.28-27,869.36-11,695.80

Finding the Fourth Proportional to 20,192.28, 27,869.36 and 11,695.80

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Solution

The fourth proportional to 20,192.28, 27,869.36 and 11,695.80 is: 16,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.28 : 27,869.36 = 11,695.80 : x
  2. Step 2: Convert to fraction form
    20,192.28/27,869.36 = 11,695.80/x
  3. Step 3: Cross multiply
    20,192.28x = 27,869.36 × 11,695.80
  4. Step 4: Simplify right side
    20,192.28x = 325,954,460.69
  5. Step 5: Solve for x
    x = 325,954,460.69/20,192.28
  6. Step 6: Final answer
    x = 16,142.53

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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.