Home / 20,142.37-30,216.62-10,276.26

Finding the Fourth Proportional to 20,142.37, 30,216.62 and 10,276.26

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Solution

The fourth proportional to 20,142.37, 30,216.62 and 10,276.26 is: 15,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.37 : 30,216.62 = 10,276.26 : x
  2. Step 2: Convert to fraction form
    20,142.37/30,216.62 = 10,276.26/x
  3. Step 3: Cross multiply
    20,142.37x = 30,216.62 × 10,276.26
  4. Step 4: Simplify right side
    20,142.37x = 310,513,843.44
  5. Step 5: Solve for x
    x = 310,513,843.44/20,142.37
  6. Step 6: Final answer
    x = 15,415.95

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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.