Home / 20,175.74-27,839.52-11,223.35

Finding the Fourth Proportional to 20,175.74, 27,839.52 and 11,223.35

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Solution

The fourth proportional to 20,175.74, 27,839.52 and 11,223.35 is: 15,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.74 : 27,839.52 = 11,223.35 : x
  2. Step 2: Convert to fraction form
    20,175.74/27,839.52 = 11,223.35/x
  3. Step 3: Cross multiply
    20,175.74x = 27,839.52 × 11,223.35
  4. Step 4: Simplify right side
    20,175.74x = 312,452,676.79
  5. Step 5: Solve for x
    x = 312,452,676.79/20,175.74
  6. Step 6: Final answer
    x = 15,486.55

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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.