Home / 20,206.10-30,316.44-10,350.02

Finding the Fourth Proportional to 20,206.10, 30,316.44 and 10,350.02

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Solution

The fourth proportional to 20,206.10, 30,316.44 and 10,350.02 is: 15,528.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.10 : 30,316.44 = 10,350.02 : x
  2. Step 2: Convert to fraction form
    20,206.10/30,316.44 = 10,350.02/x
  3. Step 3: Cross multiply
    20,206.10x = 30,316.44 × 10,350.02
  4. Step 4: Simplify right side
    20,206.10x = 313,775,760.33
  5. Step 5: Solve for x
    x = 313,775,760.33/20,206.10
  6. Step 6: Final answer
    x = 15,528.76

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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.