Home / 18,933.11-28,389.69-10,053.42

Finding the Fourth Proportional to 18,933.11, 28,389.69 and 10,053.42

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Solution

The fourth proportional to 18,933.11, 28,389.69 and 10,053.42 is: 15,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.11 : 28,389.69 = 10,053.42 : x
  2. Step 2: Convert to fraction form
    18,933.11/28,389.69 = 10,053.42/x
  3. Step 3: Cross multiply
    18,933.11x = 28,389.69 × 10,053.42
  4. Step 4: Simplify right side
    18,933.11x = 285,413,370.78
  5. Step 5: Solve for x
    x = 285,413,370.78/18,933.11
  6. Step 6: Final answer
    x = 15,074.83

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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.