Home / 18,929.16-26,109-16,076.88

Finding the Fourth Proportional to 18,929.16, 26,109 and 16,076.88

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Solution

The fourth proportional to 18,929.16, 26,109 and 16,076.88 is: 22,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.16 : 26,109 = 16,076.88 : x
  2. Step 2: Convert to fraction form
    18,929.16/26,109 = 16,076.88/x
  3. Step 3: Cross multiply
    18,929.16x = 26,109 × 16,076.88
  4. Step 4: Simplify right side
    18,929.16x = 419,751,259.92
  5. Step 5: Solve for x
    x = 419,751,259.92/18,929.16
  6. Step 6: Final answer
    x = 22,174.85

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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.