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Finding the Fourth Proportional to 26,729.20, 40,093.80 and 19,730.80

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Solution

The fourth proportional to 26,729.20, 40,093.80 and 19,730.80 is: 29,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,729.20 : 40,093.80 = 19,730.80 : x
  2. Step 2: Convert to fraction form
    26,729.20/40,093.80 = 19,730.80/x
  3. Step 3: Cross multiply
    26,729.20x = 40,093.80 × 19,730.80
  4. Step 4: Simplify right side
    26,729.20x = 791,082,749.04
  5. Step 5: Solve for x
    x = 791,082,749.04/26,729.20
  6. Step 6: Final answer
    x = 29,596.20

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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.