Home / 20,161.71-27,811.35-13,092.84

Finding the Fourth Proportional to 20,161.71, 27,811.35 and 13,092.84

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Solution

The fourth proportional to 20,161.71, 27,811.35 and 13,092.84 is: 18,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.71 : 27,811.35 = 13,092.84 : x
  2. Step 2: Convert to fraction form
    20,161.71/27,811.35 = 13,092.84/x
  3. Step 3: Cross multiply
    20,161.71x = 27,811.35 × 13,092.84
  4. Step 4: Simplify right side
    20,161.71x = 364,129,555.73
  5. Step 5: Solve for x
    x = 364,129,555.73/20,161.71
  6. Step 6: Final answer
    x = 18,060.45

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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.