Home / 43,406.09-65,007.04-21,149.72

Finding the Fourth Proportional to 43,406.09, 65,007.04 and 21,149.72

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Solution

The fourth proportional to 43,406.09, 65,007.04 and 21,149.72 is: 31,674.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,406.09 : 65,007.04 = 21,149.72 : x
  2. Step 2: Convert to fraction form
    43,406.09/65,007.04 = 21,149.72/x
  3. Step 3: Cross multiply
    43,406.09x = 65,007.04 × 21,149.72
  4. Step 4: Simplify right side
    43,406.09x = 1,374,880,694.03
  5. Step 5: Solve for x
    x = 1,374,880,694.03/43,406.09
  6. Step 6: Final answer
    x = 31,674.83

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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.