Home / 19,630.58-27,078.48-12,556.85

Finding the Fourth Proportional to 19,630.58, 27,078.48 and 12,556.85

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Solution

The fourth proportional to 19,630.58, 27,078.48 and 12,556.85 is: 17,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.58 : 27,078.48 = 12,556.85 : x
  2. Step 2: Convert to fraction form
    19,630.58/27,078.48 = 12,556.85/x
  3. Step 3: Cross multiply
    19,630.58x = 27,078.48 × 12,556.85
  4. Step 4: Simplify right side
    19,630.58x = 340,020,276.20
  5. Step 5: Solve for x
    x = 340,020,276.20/19,630.58
  6. Step 6: Final answer
    x = 17,320.95

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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.