Home / 19,278.45-28,917.68-8,884.53

Finding the Fourth Proportional to 19,278.45, 28,917.68 and 8,884.53

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Solution

The fourth proportional to 19,278.45, 28,917.68 and 8,884.53 is: 13,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.45 : 28,917.68 = 8,884.53 : x
  2. Step 2: Convert to fraction form
    19,278.45/28,917.68 = 8,884.53/x
  3. Step 3: Cross multiply
    19,278.45x = 28,917.68 × 8,884.53
  4. Step 4: Simplify right side
    19,278.45x = 256,919,951.07
  5. Step 5: Solve for x
    x = 256,919,951.07/19,278.45
  6. Step 6: Final answer
    x = 13,326.80

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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.