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Finding the Fourth Proportional to 26,945.60, 40,461.60 and 18,219.20

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Solution

The fourth proportional to 26,945.60, 40,461.60 and 18,219.20 is: 27,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,945.60 : 40,461.60 = 18,219.20 : x
  2. Step 2: Convert to fraction form
    26,945.60/40,461.60 = 18,219.20/x
  3. Step 3: Cross multiply
    26,945.60x = 40,461.60 × 18,219.20
  4. Step 4: Simplify right side
    26,945.60x = 737,177,982.72
  5. Step 5: Solve for x
    x = 737,177,982.72/26,945.60
  6. Step 6: Final answer
    x = 27,358.01

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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.