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Finding the Fourth Proportional to 43,967.36, 65,969.46 and 18,994.56

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Solution

The fourth proportional to 43,967.36, 65,969.46 and 18,994.56 is: 28,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,967.36 : 65,969.46 = 18,994.56 : x
  2. Step 2: Convert to fraction form
    43,967.36/65,969.46 = 18,994.56/x
  3. Step 3: Cross multiply
    43,967.36x = 65,969.46 × 18,994.56
  4. Step 4: Simplify right side
    43,967.36x = 1,253,060,866.14
  5. Step 5: Solve for x
    x = 1,253,060,866.14/43,967.36
  6. Step 6: Final answer
    x = 28,499.80

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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.