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Finding the Fourth Proportional to 27,423.60, 41,070.60 and 18,610.80

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Solution

The fourth proportional to 27,423.60, 41,070.60 and 18,610.80 is: 27,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,423.60 : 41,070.60 = 18,610.80 : x
  2. Step 2: Convert to fraction form
    27,423.60/41,070.60 = 18,610.80/x
  3. Step 3: Cross multiply
    27,423.60x = 41,070.60 × 18,610.80
  4. Step 4: Simplify right side
    27,423.60x = 764,356,722.48
  5. Step 5: Solve for x
    x = 764,356,722.48/27,423.60
  6. Step 6: Final answer
    x = 27,872.22

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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.