Home / 20,125.56-27,767.62-12,579.56

Finding the Fourth Proportional to 20,125.56, 27,767.62 and 12,579.56

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Solution

The fourth proportional to 20,125.56, 27,767.62 and 12,579.56 is: 17,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.56 : 27,767.62 = 12,579.56 : x
  2. Step 2: Convert to fraction form
    20,125.56/27,767.62 = 12,579.56/x
  3. Step 3: Cross multiply
    20,125.56x = 27,767.62 × 12,579.56
  4. Step 4: Simplify right side
    20,125.56x = 349,304,441.85
  5. Step 5: Solve for x
    x = 349,304,441.85/20,125.56
  6. Step 6: Final answer
    x = 17,356.26

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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.