Home / 19,109.60-28,623.97-12,085.98

Finding the Fourth Proportional to 19,109.60, 28,623.97 and 12,085.98

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Solution

The fourth proportional to 19,109.60, 28,623.97 and 12,085.98 is: 18,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.60 : 28,623.97 = 12,085.98 : x
  2. Step 2: Convert to fraction form
    19,109.60/28,623.97 = 12,085.98/x
  3. Step 3: Cross multiply
    19,109.60x = 28,623.97 × 12,085.98
  4. Step 4: Simplify right side
    19,109.60x = 345,948,728.94
  5. Step 5: Solve for x
    x = 345,948,728.94/19,109.60
  6. Step 6: Final answer
    x = 18,103.40

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1.5x scale

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.