Home / 20,513.73-30,771.72-6,474.18

Finding the Fourth Proportional to 20,513.73, 30,771.72 and 6,474.18

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Solution

The fourth proportional to 20,513.73, 30,771.72 and 6,474.18 is: 9,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.73 : 30,771.72 = 6,474.18 : x
  2. Step 2: Convert to fraction form
    20,513.73/30,771.72 = 6,474.18/x
  3. Step 3: Cross multiply
    20,513.73x = 30,771.72 × 6,474.18
  4. Step 4: Simplify right side
    20,513.73x = 199,221,654.19
  5. Step 5: Solve for x
    x = 199,221,654.19/20,513.73
  6. Step 6: Final answer
    x = 9,711.63

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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.