Home / 20,763.37-31,143.94-10,222.88

Finding the Fourth Proportional to 20,763.37, 31,143.94 and 10,222.88

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Solution

The fourth proportional to 20,763.37, 31,143.94 and 10,222.88 is: 15,333.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.37 : 31,143.94 = 10,222.88 : x
  2. Step 2: Convert to fraction form
    20,763.37/31,143.94 = 10,222.88/x
  3. Step 3: Cross multiply
    20,763.37x = 31,143.94 × 10,222.88
  4. Step 4: Simplify right side
    20,763.37x = 318,380,710.23
  5. Step 5: Solve for x
    x = 318,380,710.23/20,763.37
  6. Step 6: Final answer
    x = 15,333.77

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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.