Home / 27,520.18-37,989.48-18,579.80

Finding the Fourth Proportional to 27,520.18, 37,989.48 and 18,579.80

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Solution

The fourth proportional to 27,520.18, 37,989.48 and 18,579.80 is: 25,647.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.18 : 37,989.48 = 18,579.80 : x
  2. Step 2: Convert to fraction form
    27,520.18/37,989.48 = 18,579.80/x
  3. Step 3: Cross multiply
    27,520.18x = 37,989.48 × 18,579.80
  4. Step 4: Simplify right side
    27,520.18x = 705,836,680.88
  5. Step 5: Solve for x
    x = 705,836,680.88/27,520.18
  6. Step 6: Final answer
    x = 25,647.97

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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.