Home / 20,207.03-27,886.56-11,254.53

Finding the Fourth Proportional to 20,207.03, 27,886.56 and 11,254.53

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Solution

The fourth proportional to 20,207.03, 27,886.56 and 11,254.53 is: 15,531.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.03 : 27,886.56 = 11,254.53 : x
  2. Step 2: Convert to fraction form
    20,207.03/27,886.56 = 11,254.53/x
  3. Step 3: Cross multiply
    20,207.03x = 27,886.56 × 11,254.53
  4. Step 4: Simplify right side
    20,207.03x = 313,850,083.91
  5. Step 5: Solve for x
    x = 313,850,083.91/20,207.03
  6. Step 6: Final answer
    x = 15,531.73

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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.