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Finding the Fourth Proportional to 27,273.60, 40,813.20 and 18,914.40

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Solution

The fourth proportional to 27,273.60, 40,813.20 and 18,914.40 is: 28,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,273.60 : 40,813.20 = 18,914.40 : x
  2. Step 2: Convert to fraction form
    27,273.60/40,813.20 = 18,914.40/x
  3. Step 3: Cross multiply
    27,273.60x = 40,813.20 × 18,914.40
  4. Step 4: Simplify right side
    27,273.60x = 771,957,190.08
  5. Step 5: Solve for x
    x = 771,957,190.08/27,273.60
  6. Step 6: Final answer
    x = 28,304.19

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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.