Home / 20,175.42-27,841.64-11,222.48

Finding the Fourth Proportional to 20,175.42, 27,841.64 and 11,222.48

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Solution

The fourth proportional to 20,175.42, 27,841.64 and 11,222.48 is: 15,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.42 : 27,841.64 = 11,222.48 : x
  2. Step 2: Convert to fraction form
    20,175.42/27,841.64 = 11,222.48/x
  3. Step 3: Cross multiply
    20,175.42x = 27,841.64 × 11,222.48
  4. Step 4: Simplify right side
    20,175.42x = 312,452,248.07
  5. Step 5: Solve for x
    x = 312,452,248.07/20,175.42
  6. Step 6: Final answer
    x = 15,486.78

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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.