Home / 19,272.60-28,910.32-8,178.03

Finding the Fourth Proportional to 19,272.60, 28,910.32 and 8,178.03

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Solution

The fourth proportional to 19,272.60, 28,910.32 and 8,178.03 is: 12,267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.60 : 28,910.32 = 8,178.03 : x
  2. Step 2: Convert to fraction form
    19,272.60/28,910.32 = 8,178.03/x
  3. Step 3: Cross multiply
    19,272.60x = 28,910.32 × 8,178.03
  4. Step 4: Simplify right side
    19,272.60x = 236,429,443.82
  5. Step 5: Solve for x
    x = 236,429,443.82/19,272.60
  6. Step 6: Final answer
    x = 12,267.65

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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.