Home / 20,513.50-30,770.25-6,474.94

Finding the Fourth Proportional to 20,513.50, 30,770.25 and 6,474.94

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Solution

The fourth proportional to 20,513.50, 30,770.25 and 6,474.94 is: 9,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.50 : 30,770.25 = 6,474.94 : x
  2. Step 2: Convert to fraction form
    20,513.50/30,770.25 = 6,474.94/x
  3. Step 3: Cross multiply
    20,513.50x = 30,770.25 × 6,474.94
  4. Step 4: Simplify right side
    20,513.50x = 199,235,657.02
  5. Step 5: Solve for x
    x = 199,235,657.02/20,513.50
  6. Step 6: Final answer
    x = 9,712.42

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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.