Home / 28,104.60-38,788.20-16,167.64

Finding the Fourth Proportional to 28,104.60, 38,788.20 and 16,167.64

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Solution

The fourth proportional to 28,104.60, 38,788.20 and 16,167.64 is: 22,313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.60 : 38,788.20 = 16,167.64 : x
  2. Step 2: Convert to fraction form
    28,104.60/38,788.20 = 16,167.64/x
  3. Step 3: Cross multiply
    28,104.60x = 38,788.20 × 16,167.64
  4. Step 4: Simplify right side
    28,104.60x = 627,113,653.85
  5. Step 5: Solve for x
    x = 627,113,653.85/28,104.60
  6. Step 6: Final answer
    x = 22,313.56

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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.