Home / 20,923.43-31,309.94-15,362.98

Finding the Fourth Proportional to 20,923.43, 31,309.94 and 15,362.98

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Solution

The fourth proportional to 20,923.43, 31,309.94 and 15,362.98 is: 22,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.43 : 31,309.94 = 15,362.98 : x
  2. Step 2: Convert to fraction form
    20,923.43/31,309.94 = 15,362.98/x
  3. Step 3: Cross multiply
    20,923.43x = 31,309.94 × 15,362.98
  4. Step 4: Simplify right side
    20,923.43x = 481,013,942.15
  5. Step 5: Solve for x
    x = 481,013,942.15/20,923.43
  6. Step 6: Final answer
    x = 22,989.25

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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.