Home / 20,326.68-28,050.82-11,375.91

Finding the Fourth Proportional to 20,326.68, 28,050.82 and 11,375.91

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Solution

The fourth proportional to 20,326.68, 28,050.82 and 11,375.91 is: 15,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.68 : 28,050.82 = 11,375.91 : x
  2. Step 2: Convert to fraction form
    20,326.68/28,050.82 = 11,375.91/x
  3. Step 3: Cross multiply
    20,326.68x = 28,050.82 × 11,375.91
  4. Step 4: Simplify right side
    20,326.68x = 319,103,639.30
  5. Step 5: Solve for x
    x = 319,103,639.30/20,326.68
  6. Step 6: Final answer
    x = 15,698.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.