Home / 20,883.53-28,659.48-20,735.91

Finding the Fourth Proportional to 20,883.53, 28,659.48 and 20,735.91

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Solution

The fourth proportional to 20,883.53, 28,659.48 and 20,735.91 is: 28,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.53 : 28,659.48 = 20,735.91 : x
  2. Step 2: Convert to fraction form
    20,883.53/28,659.48 = 20,735.91/x
  3. Step 3: Cross multiply
    20,883.53x = 28,659.48 × 20,735.91
  4. Step 4: Simplify right side
    20,883.53x = 594,280,397.93
  5. Step 5: Solve for x
    x = 594,280,397.93/20,883.53
  6. Step 6: Final answer
    x = 28,456.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.