Home / 19,162.60-28,679.10-16,829.80

Finding the Fourth Proportional to 19,162.60, 28,679.10 and 16,829.80

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Solution

The fourth proportional to 19,162.60, 28,679.10 and 16,829.80 is: 25,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.60 : 28,679.10 = 16,829.80 : x
  2. Step 2: Convert to fraction form
    19,162.60/28,679.10 = 16,829.80/x
  3. Step 3: Cross multiply
    19,162.60x = 28,679.10 × 16,829.80
  4. Step 4: Simplify right side
    19,162.60x = 482,663,517.18
  5. Step 5: Solve for x
    x = 482,663,517.18/19,162.60
  6. Step 6: Final answer
    x = 25,187.79

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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.