Home / 20,510.82-30,770.36-6,473.02

Finding the Fourth Proportional to 20,510.82, 30,770.36 and 6,473.02

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Solution

The fourth proportional to 20,510.82, 30,770.36 and 6,473.02 is: 9,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.82 : 30,770.36 = 6,473.02 : x
  2. Step 2: Convert to fraction form
    20,510.82/30,770.36 = 6,473.02/x
  3. Step 3: Cross multiply
    20,510.82x = 30,770.36 × 6,473.02
  4. Step 4: Simplify right side
    20,510.82x = 199,177,155.69
  5. Step 5: Solve for x
    x = 199,177,155.69/20,510.82
  6. Step 6: Final answer
    x = 9,710.83

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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.