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Finding the Fourth Proportional to 18,431.35, 27,647.04 and 4,580.35

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Solution

The fourth proportional to 18,431.35, 27,647.04 and 4,580.35 is: 6,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.35 : 27,647.04 = 4,580.35 : x
  2. Step 2: Convert to fraction form
    18,431.35/27,647.04 = 4,580.35/x
  3. Step 3: Cross multiply
    18,431.35x = 27,647.04 × 4,580.35
  4. Step 4: Simplify right side
    18,431.35x = 126,633,119.66
  5. Step 5: Solve for x
    x = 126,633,119.66/18,431.35
  6. Step 6: Final answer
    x = 6,870.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.