Home / 20,133.37-30,195.87-10,135.36

Finding the Fourth Proportional to 20,133.37, 30,195.87 and 10,135.36

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Solution

The fourth proportional to 20,133.37, 30,195.87 and 10,135.36 is: 15,200.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.37 : 30,195.87 = 10,135.36 : x
  2. Step 2: Convert to fraction form
    20,133.37/30,195.87 = 10,135.36/x
  3. Step 3: Cross multiply
    20,133.37x = 30,195.87 × 10,135.36
  4. Step 4: Simplify right side
    20,133.37x = 306,046,012.96
  5. Step 5: Solve for x
    x = 306,046,012.96/20,133.37
  6. Step 6: Final answer
    x = 15,200.93

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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.