Home / 20,089.44-30,138.56-7,609.55

Finding the Fourth Proportional to 20,089.44, 30,138.56 and 7,609.55

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Solution

The fourth proportional to 20,089.44, 30,138.56 and 7,609.55 is: 11,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.44 : 30,138.56 = 7,609.55 : x
  2. Step 2: Convert to fraction form
    20,089.44/30,138.56 = 7,609.55/x
  3. Step 3: Cross multiply
    20,089.44x = 30,138.56 × 7,609.55
  4. Step 4: Simplify right side
    20,089.44x = 229,340,690.51
  5. Step 5: Solve for x
    x = 229,340,690.51/20,089.44
  6. Step 6: Final answer
    x = 11,415.98

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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.