Home / 20,182.08-27,855.36-11,801.28

Finding the Fourth Proportional to 20,182.08, 27,855.36 and 11,801.28

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Solution

The fourth proportional to 20,182.08, 27,855.36 and 11,801.28 is: 16,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.08 : 27,855.36 = 11,801.28 : x
  2. Step 2: Convert to fraction form
    20,182.08/27,855.36 = 11,801.28/x
  3. Step 3: Cross multiply
    20,182.08x = 27,855.36 × 11,801.28
  4. Step 4: Simplify right side
    20,182.08x = 328,728,902.86
  5. Step 5: Solve for x
    x = 328,728,902.86/20,182.08
  6. Step 6: Final answer
    x = 16,288.16

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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.