Home / 20,179.72-27,848.82-12,626.20

Finding the Fourth Proportional to 20,179.72, 27,848.82 and 12,626.20

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Solution

The fourth proportional to 20,179.72, 27,848.82 and 12,626.20 is: 17,424.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.72 : 27,848.82 = 12,626.20 : x
  2. Step 2: Convert to fraction form
    20,179.72/27,848.82 = 12,626.20/x
  3. Step 3: Cross multiply
    20,179.72x = 27,848.82 × 12,626.20
  4. Step 4: Simplify right side
    20,179.72x = 351,624,771.08
  5. Step 5: Solve for x
    x = 351,624,771.08/20,179.72
  6. Step 6: Final answer
    x = 17,424.66

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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.