Home / 20,177.19-27,843.75-11,224.40

Finding the Fourth Proportional to 20,177.19, 27,843.75 and 11,224.40

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Solution

The fourth proportional to 20,177.19, 27,843.75 and 11,224.40 is: 15,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.19 : 27,843.75 = 11,224.40 : x
  2. Step 2: Convert to fraction form
    20,177.19/27,843.75 = 11,224.40/x
  3. Step 3: Cross multiply
    20,177.19x = 27,843.75 × 11,224.40
  4. Step 4: Simplify right side
    20,177.19x = 312,529,248.28
  5. Step 5: Solve for x
    x = 312,529,248.28/20,177.19
  6. Step 6: Final answer
    x = 15,489.24

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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.