Home / 20,177.91-27,844.16-11,224.80

Finding the Fourth Proportional to 20,177.91, 27,844.16 and 11,224.80

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Solution

The fourth proportional to 20,177.91, 27,844.16 and 11,224.80 is: 15,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.91 : 27,844.16 = 11,224.80 : x
  2. Step 2: Convert to fraction form
    20,177.91/27,844.16 = 11,224.80/x
  3. Step 3: Cross multiply
    20,177.91x = 27,844.16 × 11,224.80
  4. Step 4: Simplify right side
    20,177.91x = 312,545,071.04
  5. Step 5: Solve for x
    x = 312,545,071.04/20,177.91
  6. Step 6: Final answer
    x = 15,489.47

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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.