Home / 20,627.73-28,489.46-13,940.96

Finding the Fourth Proportional to 20,627.73, 28,489.46 and 13,940.96

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Solution

The fourth proportional to 20,627.73, 28,489.46 and 13,940.96 is: 19,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.73 : 28,489.46 = 13,940.96 : x
  2. Step 2: Convert to fraction form
    20,627.73/28,489.46 = 13,940.96/x
  3. Step 3: Cross multiply
    20,627.73x = 28,489.46 × 13,940.96
  4. Step 4: Simplify right side
    20,627.73x = 397,170,210.13
  5. Step 5: Solve for x
    x = 397,170,210.13/20,627.73
  6. Step 6: Final answer
    x = 19,254.19

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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.