Home / 20,513.46-30,775.70-6,474.03

Finding the Fourth Proportional to 20,513.46, 30,775.70 and 6,474.03

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Solution

The fourth proportional to 20,513.46, 30,775.70 and 6,474.03 is: 9,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.46 : 30,775.70 = 6,474.03 : x
  2. Step 2: Convert to fraction form
    20,513.46/30,775.70 = 6,474.03/x
  3. Step 3: Cross multiply
    20,513.46x = 30,775.70 × 6,474.03
  4. Step 4: Simplify right side
    20,513.46x = 199,242,805.07
  5. Step 5: Solve for x
    x = 199,242,805.07/20,513.46
  6. Step 6: Final answer
    x = 9,712.78

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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.