Home / 33,129.81-45,704.08-19,693.43

Finding the Fourth Proportional to 33,129.81, 45,704.08 and 19,693.43

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Solution

The fourth proportional to 33,129.81, 45,704.08 and 19,693.43 is: 27,167.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.81 : 45,704.08 = 19,693.43 : x
  2. Step 2: Convert to fraction form
    33,129.81/45,704.08 = 19,693.43/x
  3. Step 3: Cross multiply
    33,129.81x = 45,704.08 × 19,693.43
  4. Step 4: Simplify right side
    33,129.81x = 900,070,067.68
  5. Step 5: Solve for x
    x = 900,070,067.68/33,129.81
  6. Step 6: Final answer
    x = 27,167.98

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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.