Home / 20,092.97-27,727.08-11,139.93

Finding the Fourth Proportional to 20,092.97, 27,727.08 and 11,139.93

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Solution

The fourth proportional to 20,092.97, 27,727.08 and 11,139.93 is: 15,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.97 : 27,727.08 = 11,139.93 : x
  2. Step 2: Convert to fraction form
    20,092.97/27,727.08 = 11,139.93/x
  3. Step 3: Cross multiply
    20,092.97x = 27,727.08 × 11,139.93
  4. Step 4: Simplify right side
    20,092.97x = 308,877,730.30
  5. Step 5: Solve for x
    x = 308,877,730.30/20,092.97
  6. Step 6: Final answer
    x = 15,372.43

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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.