Home / 20,164.68-27,827.46-11,781.18

Finding the Fourth Proportional to 20,164.68, 27,827.46 and 11,781.18

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Solution

The fourth proportional to 20,164.68, 27,827.46 and 11,781.18 is: 16,258.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.68 : 27,827.46 = 11,781.18 : x
  2. Step 2: Convert to fraction form
    20,164.68/27,827.46 = 11,781.18/x
  3. Step 3: Cross multiply
    20,164.68x = 27,827.46 × 11,781.18
  4. Step 4: Simplify right side
    20,164.68x = 327,840,315.20
  5. Step 5: Solve for x
    x = 327,840,315.20/20,164.68
  6. Step 6: Final answer
    x = 16,258.15

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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.