Home / 20,309.05-30,463.71-13,294.96

Finding the Fourth Proportional to 20,309.05, 30,463.71 and 13,294.96

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Solution

The fourth proportional to 20,309.05, 30,463.71 and 13,294.96 is: 19,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309.05 : 30,463.71 = 13,294.96 : x
  2. Step 2: Convert to fraction form
    20,309.05/30,463.71 = 13,294.96/x
  3. Step 3: Cross multiply
    20,309.05x = 30,463.71 × 13,294.96
  4. Step 4: Simplify right side
    20,309.05x = 405,013,805.90
  5. Step 5: Solve for x
    x = 405,013,805.90/20,309.05
  6. Step 6: Final answer
    x = 19,942.53

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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.