Home / 39,078.86-58,651.09-16,909.16

Finding the Fourth Proportional to 39,078.86, 58,651.09 and 16,909.16

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Solution

The fourth proportional to 39,078.86, 58,651.09 and 16,909.16 is: 25,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078.86 : 58,651.09 = 16,909.16 : x
  2. Step 2: Convert to fraction form
    39,078.86/58,651.09 = 16,909.16/x
  3. Step 3: Cross multiply
    39,078.86x = 58,651.09 × 16,909.16
  4. Step 4: Simplify right side
    39,078.86x = 991,740,329.46
  5. Step 5: Solve for x
    x = 991,740,329.46/39,078.86
  6. Step 6: Final answer
    x = 25,377.93

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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.