Home / 20,004.20-29,963.10-13,005.80

Finding the Fourth Proportional to 20,004.20, 29,963.10 and 13,005.80

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Solution

The fourth proportional to 20,004.20, 29,963.10 and 13,005.80 is: 19,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.20 : 29,963.10 = 13,005.80 : x
  2. Step 2: Convert to fraction form
    20,004.20/29,963.10 = 13,005.80/x
  3. Step 3: Cross multiply
    20,004.20x = 29,963.10 × 13,005.80
  4. Step 4: Simplify right side
    20,004.20x = 389,694,085.98
  5. Step 5: Solve for x
    x = 389,694,085.98/20,004.20
  6. Step 6: Final answer
    x = 19,480.61

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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.