Home / 31,423.01-43,365.84-17,996.09

Finding the Fourth Proportional to 31,423.01, 43,365.84 and 17,996.09

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Solution

The fourth proportional to 31,423.01, 43,365.84 and 17,996.09 is: 24,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.01 : 43,365.84 = 17,996.09 : x
  2. Step 2: Convert to fraction form
    31,423.01/43,365.84 = 17,996.09/x
  3. Step 3: Cross multiply
    31,423.01x = 43,365.84 × 17,996.09
  4. Step 4: Simplify right side
    31,423.01x = 780,415,559.57
  5. Step 5: Solve for x
    x = 780,415,559.57/31,423.01
  6. Step 6: Final answer
    x = 24,835.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.