Home / 45,277.47-67,912.29-20,310.84

Finding the Fourth Proportional to 45,277.47, 67,912.29 and 20,310.84

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Solution

The fourth proportional to 45,277.47, 67,912.29 and 20,310.84 is: 30,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,277.47 : 67,912.29 = 20,310.84 : x
  2. Step 2: Convert to fraction form
    45,277.47/67,912.29 = 20,310.84/x
  3. Step 3: Cross multiply
    45,277.47x = 67,912.29 × 20,310.84
  4. Step 4: Simplify right side
    45,277.47x = 1,379,355,656.22
  5. Step 5: Solve for x
    x = 1,379,355,656.22/45,277.47
  6. Step 6: Final answer
    x = 30,464.50

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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.