Home / 20,139.44-30,215.16-9,049.52

Finding the Fourth Proportional to 20,139.44, 30,215.16 and 9,049.52

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Solution

The fourth proportional to 20,139.44, 30,215.16 and 9,049.52 is: 13,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139.44 : 30,215.16 = 9,049.52 : x
  2. Step 2: Convert to fraction form
    20,139.44/30,215.16 = 9,049.52/x
  3. Step 3: Cross multiply
    20,139.44x = 30,215.16 × 9,049.52
  4. Step 4: Simplify right side
    20,139.44x = 273,432,694.72
  5. Step 5: Solve for x
    x = 273,432,694.72/20,139.44
  6. Step 6: Final answer
    x = 13,576.98

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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.