Home / 20,115.44-30,160.86-9,585.03

Finding the Fourth Proportional to 20,115.44, 30,160.86 and 9,585.03

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Solution

The fourth proportional to 20,115.44, 30,160.86 and 9,585.03 is: 14,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,115.44 : 30,160.86 = 9,585.03 : x
  2. Step 2: Convert to fraction form
    20,115.44/30,160.86 = 9,585.03/x
  3. Step 3: Cross multiply
    20,115.44x = 30,160.86 × 9,585.03
  4. Step 4: Simplify right side
    20,115.44x = 289,092,825.09
  5. Step 5: Solve for x
    x = 289,092,825.09/20,115.44
  6. Step 6: Final answer
    x = 14,371.69

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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.