Home / 20,231.83-30,342.87-10,366.03

Finding the Fourth Proportional to 20,231.83, 30,342.87 and 10,366.03

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Solution

The fourth proportional to 20,231.83, 30,342.87 and 10,366.03 is: 15,546.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.83 : 30,342.87 = 10,366.03 : x
  2. Step 2: Convert to fraction form
    20,231.83/30,342.87 = 10,366.03/x
  3. Step 3: Cross multiply
    20,231.83x = 30,342.87 × 10,366.03
  4. Step 4: Simplify right side
    20,231.83x = 314,535,100.71
  5. Step 5: Solve for x
    x = 314,535,100.71/20,231.83
  6. Step 6: Final answer
    x = 15,546.55

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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.