Home / 15,635.88-21,449.03-14,788.50

Finding the Fourth Proportional to 15,635.88, 21,449.03 and 14,788.50

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Solution

The fourth proportional to 15,635.88, 21,449.03 and 14,788.50 is: 20,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635.88 : 21,449.03 = 14,788.50 : x
  2. Step 2: Convert to fraction form
    15,635.88/21,449.03 = 14,788.50/x
  3. Step 3: Cross multiply
    15,635.88x = 21,449.03 × 14,788.50
  4. Step 4: Simplify right side
    15,635.88x = 317,198,906.21
  5. Step 5: Solve for x
    x = 317,198,906.21/15,635.88
  6. Step 6: Final answer
    x = 20,286.60

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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.