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Finding the Fourth Proportional to 18,430.35, 27,645.54 and 4,579.35

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Solution

The fourth proportional to 18,430.35, 27,645.54 and 4,579.35 is: 6,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.35 : 27,645.54 = 4,579.35 : x
  2. Step 2: Convert to fraction form
    18,430.35/27,645.54 = 4,579.35/x
  3. Step 3: Cross multiply
    18,430.35x = 27,645.54 × 4,579.35
  4. Step 4: Simplify right side
    18,430.35x = 126,598,540.95
  5. Step 5: Solve for x
    x = 126,598,540.95/18,430.35
  6. Step 6: Final answer
    x = 6,869.03

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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.