Home / 19,267.20-28,909.08-8,181.36

Finding the Fourth Proportional to 19,267.20, 28,909.08 and 8,181.36

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Solution

The fourth proportional to 19,267.20, 28,909.08 and 8,181.36 is: 12,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,267.20 : 28,909.08 = 8,181.36 : x
  2. Step 2: Convert to fraction form
    19,267.20/28,909.08 = 8,181.36/x
  3. Step 3: Cross multiply
    19,267.20x = 28,909.08 × 8,181.36
  4. Step 4: Simplify right side
    19,267.20x = 236,515,590.75
  5. Step 5: Solve for x
    x = 236,515,590.75/19,267.20
  6. Step 6: Final answer
    x = 12,275.56

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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.