Home / 43,834.20-65,708.10-21,629.40

Finding the Fourth Proportional to 43,834.20, 65,708.10 and 21,629.40

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Solution

The fourth proportional to 43,834.20, 65,708.10 and 21,629.40 is: 32,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,834.20 : 65,708.10 = 21,629.40 : x
  2. Step 2: Convert to fraction form
    43,834.20/65,708.10 = 21,629.40/x
  3. Step 3: Cross multiply
    43,834.20x = 65,708.10 × 21,629.40
  4. Step 4: Simplify right side
    43,834.20x = 1,421,226,778.14
  5. Step 5: Solve for x
    x = 1,421,226,778.14/43,834.20
  6. Step 6: Final answer
    x = 32,422.78

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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.