Home / 16,819.80-25,229.70-13,539.30

Finding the Fourth Proportional to 16,819.80, 25,229.70 and 13,539.30

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Solution

The fourth proportional to 16,819.80, 25,229.70 and 13,539.30 is: 20,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,819.80 : 25,229.70 = 13,539.30 : x
  2. Step 2: Convert to fraction form
    16,819.80/25,229.70 = 13,539.30/x
  3. Step 3: Cross multiply
    16,819.80x = 25,229.70 × 13,539.30
  4. Step 4: Simplify right side
    16,819.80x = 341,592,477.21
  5. Step 5: Solve for x
    x = 341,592,477.21/16,819.80
  6. Step 6: Final answer
    x = 20,308.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.