Home / 20,843.30-28,762.62-11,410.04

Finding the Fourth Proportional to 20,843.30, 28,762.62 and 11,410.04

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Solution

The fourth proportional to 20,843.30, 28,762.62 and 11,410.04 is: 15,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.30 : 28,762.62 = 11,410.04 : x
  2. Step 2: Convert to fraction form
    20,843.30/28,762.62 = 11,410.04/x
  3. Step 3: Cross multiply
    20,843.30x = 28,762.62 × 11,410.04
  4. Step 4: Simplify right side
    20,843.30x = 328,182,644.70
  5. Step 5: Solve for x
    x = 328,182,644.70/20,843.30
  6. Step 6: Final answer
    x = 15,745.23

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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.