Home / 19,309.89-28,983.12-9,956.42

Finding the Fourth Proportional to 19,309.89, 28,983.12 and 9,956.42

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Solution

The fourth proportional to 19,309.89, 28,983.12 and 9,956.42 is: 14,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.89 : 28,983.12 = 9,956.42 : x
  2. Step 2: Convert to fraction form
    19,309.89/28,983.12 = 9,956.42/x
  3. Step 3: Cross multiply
    19,309.89x = 28,983.12 × 9,956.42
  4. Step 4: Simplify right side
    19,309.89x = 288,568,042.06
  5. Step 5: Solve for x
    x = 288,568,042.06/19,309.89
  6. Step 6: Final answer
    x = 14,944.05

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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.