Home / 28,339.69-39,106.35-16,403.77

Finding the Fourth Proportional to 28,339.69, 39,106.35 and 16,403.77

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Solution

The fourth proportional to 28,339.69, 39,106.35 and 16,403.77 is: 22,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339.69 : 39,106.35 = 16,403.77 : x
  2. Step 2: Convert to fraction form
    28,339.69/39,106.35 = 16,403.77/x
  3. Step 3: Cross multiply
    28,339.69x = 39,106.35 × 16,403.77
  4. Step 4: Simplify right side
    28,339.69x = 641,491,570.94
  5. Step 5: Solve for x
    x = 641,491,570.94/28,339.69
  6. Step 6: Final answer
    x = 22,635.80

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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.