Home / 20,558.14-30,812.37-10,012.35

Finding the Fourth Proportional to 20,558.14, 30,812.37 and 10,012.35

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Solution

The fourth proportional to 20,558.14, 30,812.37 and 10,012.35 is: 15,006.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.14 : 30,812.37 = 10,012.35 : x
  2. Step 2: Convert to fraction form
    20,558.14/30,812.37 = 10,012.35/x
  3. Step 3: Cross multiply
    20,558.14x = 30,812.37 × 10,012.35
  4. Step 4: Simplify right side
    20,558.14x = 308,504,310.22
  5. Step 5: Solve for x
    x = 308,504,310.22/20,558.14
  6. Step 6: Final answer
    x = 15,006.43

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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.