Home / 19,010.82-28,516.20-5,159.82

Finding the Fourth Proportional to 19,010.82, 28,516.20 and 5,159.82

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Solution

The fourth proportional to 19,010.82, 28,516.20 and 5,159.82 is: 7,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010.82 : 28,516.20 = 5,159.82 : x
  2. Step 2: Convert to fraction form
    19,010.82/28,516.20 = 5,159.82/x
  3. Step 3: Cross multiply
    19,010.82x = 28,516.20 × 5,159.82
  4. Step 4: Simplify right side
    19,010.82x = 147,138,459.08
  5. Step 5: Solve for x
    x = 147,138,459.08/19,010.82
  6. Step 6: Final answer
    x = 7,739.72

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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.