Home / 28,103.36-38,784.35-16,166.41

Finding the Fourth Proportional to 28,103.36, 38,784.35 and 16,166.41

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Solution

The fourth proportional to 28,103.36, 38,784.35 and 16,166.41 is: 22,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.36 : 38,784.35 = 16,166.41 : x
  2. Step 2: Convert to fraction form
    28,103.36/38,784.35 = 16,166.41/x
  3. Step 3: Cross multiply
    28,103.36x = 38,784.35 × 16,166.41
  4. Step 4: Simplify right side
    28,103.36x = 627,003,647.14
  5. Step 5: Solve for x
    x = 627,003,647.14/28,103.36
  6. Step 6: Final answer
    x = 22,310.63

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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.