Home / 20,754.10-31,137.11-10,227.26

Finding the Fourth Proportional to 20,754.10, 31,137.11 and 10,227.26

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Solution

The fourth proportional to 20,754.10, 31,137.11 and 10,227.26 is: 15,343.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.10 : 31,137.11 = 10,227.26 : x
  2. Step 2: Convert to fraction form
    20,754.10/31,137.11 = 10,227.26/x
  3. Step 3: Cross multiply
    20,754.10x = 31,137.11 × 10,227.26
  4. Step 4: Simplify right side
    20,754.10x = 318,447,384.68
  5. Step 5: Solve for x
    x = 318,447,384.68/20,754.10
  6. Step 6: Final answer
    x = 15,343.83

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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.