Home / 19,095.40-28,659.30-8,581.60

Finding the Fourth Proportional to 19,095.40, 28,659.30 and 8,581.60

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Solution

The fourth proportional to 19,095.40, 28,659.30 and 8,581.60 is: 12,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,095.40 : 28,659.30 = 8,581.60 : x
  2. Step 2: Convert to fraction form
    19,095.40/28,659.30 = 8,581.60/x
  3. Step 3: Cross multiply
    19,095.40x = 28,659.30 × 8,581.60
  4. Step 4: Simplify right side
    19,095.40x = 245,942,648.88
  5. Step 5: Solve for x
    x = 245,942,648.88/19,095.40
  6. Step 6: Final answer
    x = 12,879.68

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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.