Home / 73,013.57-109,537.97-20,422.29

Finding the Fourth Proportional to 73,013.57, 109,537.97 and 20,422.29

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Solution

The fourth proportional to 73,013.57, 109,537.97 and 20,422.29 is: 30,638.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,013.57 : 109,537.97 = 20,422.29 : x
  2. Step 2: Convert to fraction form
    73,013.57/109,537.97 = 20,422.29/x
  3. Step 3: Cross multiply
    73,013.57x = 109,537.97 × 20,422.29
  4. Step 4: Simplify right side
    73,013.57x = 2,237,016,087.24
  5. Step 5: Solve for x
    x = 2,237,016,087.24/73,013.57
  6. Step 6: Final answer
    x = 30,638.36

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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.