Home / 31,742.27-43,788.46-20,262.64

Finding the Fourth Proportional to 31,742.27, 43,788.46 and 20,262.64

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Solution

The fourth proportional to 31,742.27, 43,788.46 and 20,262.64 is: 27,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.27 : 43,788.46 = 20,262.64 : x
  2. Step 2: Convert to fraction form
    31,742.27/43,788.46 = 20,262.64/x
  3. Step 3: Cross multiply
    31,742.27x = 43,788.46 × 20,262.64
  4. Step 4: Simplify right side
    31,742.27x = 887,269,801.13
  5. Step 5: Solve for x
    x = 887,269,801.13/31,742.27
  6. Step 6: Final answer
    x = 27,952.31

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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.