Home / 43,429.50-65,115.09-20,043.18

Finding the Fourth Proportional to 43,429.50, 65,115.09 and 20,043.18

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Solution

The fourth proportional to 43,429.50, 65,115.09 and 20,043.18 is: 30,051.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,429.50 : 65,115.09 = 20,043.18 : x
  2. Step 2: Convert to fraction form
    43,429.50/65,115.09 = 20,043.18/x
  3. Step 3: Cross multiply
    43,429.50x = 65,115.09 × 20,043.18
  4. Step 4: Simplify right side
    43,429.50x = 1,305,113,469.59
  5. Step 5: Solve for x
    x = 1,305,113,469.59/43,429.50
  6. Step 6: Final answer
    x = 30,051.31

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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.