Home / 20,097.60-27,734.40-11,145.06

Finding the Fourth Proportional to 20,097.60, 27,734.40 and 11,145.06

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Solution

The fourth proportional to 20,097.60, 27,734.40 and 11,145.06 is: 15,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.60 : 27,734.40 = 11,145.06 : x
  2. Step 2: Convert to fraction form
    20,097.60/27,734.40 = 11,145.06/x
  3. Step 3: Cross multiply
    20,097.60x = 27,734.40 × 11,145.06
  4. Step 4: Simplify right side
    20,097.60x = 309,101,552.06
  5. Step 5: Solve for x
    x = 309,101,552.06/20,097.60
  6. Step 6: Final answer
    x = 15,380.02

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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.