Home / 22,520.84-31,078.77-12,584.84

Finding the Fourth Proportional to 22,520.84, 31,078.77 and 12,584.84

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Solution

The fourth proportional to 22,520.84, 31,078.77 and 12,584.84 is: 17,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.84 : 31,078.77 = 12,584.84 : x
  2. Step 2: Convert to fraction form
    22,520.84/31,078.77 = 12,584.84/x
  3. Step 3: Cross multiply
    22,520.84x = 31,078.77 × 12,584.84
  4. Step 4: Simplify right side
    22,520.84x = 391,121,347.85
  5. Step 5: Solve for x
    x = 391,121,347.85/22,520.84
  6. Step 6: Final answer
    x = 17,367.09

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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.