Home / 20,098.28-27,735.69-11,146.61

Finding the Fourth Proportional to 20,098.28, 27,735.69 and 11,146.61

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Solution

The fourth proportional to 20,098.28, 27,735.69 and 11,146.61 is: 15,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.28 : 27,735.69 = 11,146.61 : x
  2. Step 2: Convert to fraction form
    20,098.28/27,735.69 = 11,146.61/x
  3. Step 3: Cross multiply
    20,098.28x = 27,735.69 × 11,146.61
  4. Step 4: Simplify right side
    20,098.28x = 309,158,780.83
  5. Step 5: Solve for x
    x = 309,158,780.83/20,098.28
  6. Step 6: Final answer
    x = 15,382.35

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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.