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Finding the Fourth Proportional to 20,043.81, 30,032.88 and 10,673.88

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Solution

The fourth proportional to 20,043.81, 30,032.88 and 10,673.88 is: 15,993.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.81 : 30,032.88 = 10,673.88 : x
  2. Step 2: Convert to fraction form
    20,043.81/30,032.88 = 10,673.88/x
  3. Step 3: Cross multiply
    20,043.81x = 30,032.88 × 10,673.88
  4. Step 4: Simplify right side
    20,043.81x = 320,567,357.17
  5. Step 5: Solve for x
    x = 320,567,357.17/20,043.81
  6. Step 6: Final answer
    x = 15,993.33

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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.