Home / 20,735.52-28,615.32-12,773.22

Finding the Fourth Proportional to 20,735.52, 28,615.32 and 12,773.22

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Solution

The fourth proportional to 20,735.52, 28,615.32 and 12,773.22 is: 17,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.52 : 28,615.32 = 12,773.22 : x
  2. Step 2: Convert to fraction form
    20,735.52/28,615.32 = 12,773.22/x
  3. Step 3: Cross multiply
    20,735.52x = 28,615.32 × 12,773.22
  4. Step 4: Simplify right side
    20,735.52x = 365,509,777.73
  5. Step 5: Solve for x
    x = 365,509,777.73/20,735.52
  6. Step 6: Final answer
    x = 17,627.23

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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.