Home / 20,815.86-31,198.94-10,950.06

Finding the Fourth Proportional to 20,815.86, 31,198.94 and 10,950.06

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Solution

The fourth proportional to 20,815.86, 31,198.94 and 10,950.06 is: 16,412.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,815.86 : 31,198.94 = 10,950.06 : x
  2. Step 2: Convert to fraction form
    20,815.86/31,198.94 = 10,950.06/x
  3. Step 3: Cross multiply
    20,815.86x = 31,198.94 × 10,950.06
  4. Step 4: Simplify right side
    20,815.86x = 341,630,264.94
  5. Step 5: Solve for x
    x = 341,630,264.94/20,815.86
  6. Step 6: Final answer
    x = 16,412.02

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1.5x scale

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.