Home / 20,533.25-28,310.21-17,135.15

Finding the Fourth Proportional to 20,533.25, 28,310.21 and 17,135.15

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Solution

The fourth proportional to 20,533.25, 28,310.21 and 17,135.15 is: 23,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.25 : 28,310.21 = 17,135.15 : x
  2. Step 2: Convert to fraction form
    20,533.25/28,310.21 = 17,135.15/x
  3. Step 3: Cross multiply
    20,533.25x = 28,310.21 × 17,135.15
  4. Step 4: Simplify right side
    20,533.25x = 485,099,679.98
  5. Step 5: Solve for x
    x = 485,099,679.98/20,533.25
  6. Step 6: Final answer
    x = 23,625.09

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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.