Home / 20,144.14-30,216.80-9,615.27

Finding the Fourth Proportional to 20,144.14, 30,216.80 and 9,615.27

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Solution

The fourth proportional to 20,144.14, 30,216.80 and 9,615.27 is: 14,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.14 : 30,216.80 = 9,615.27 : x
  2. Step 2: Convert to fraction form
    20,144.14/30,216.80 = 9,615.27/x
  3. Step 3: Cross multiply
    20,144.14x = 30,216.80 × 9,615.27
  4. Step 4: Simplify right side
    20,144.14x = 290,542,690.54
  5. Step 5: Solve for x
    x = 290,542,690.54/20,144.14
  6. Step 6: Final answer
    x = 14,423.19

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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.