Home / 20,371.05-30,540.13-7,216.24

Finding the Fourth Proportional to 20,371.05, 30,540.13 and 7,216.24

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Solution

The fourth proportional to 20,371.05, 30,540.13 and 7,216.24 is: 10,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.05 : 30,540.13 = 7,216.24 : x
  2. Step 2: Convert to fraction form
    20,371.05/30,540.13 = 7,216.24/x
  3. Step 3: Cross multiply
    20,371.05x = 30,540.13 × 7,216.24
  4. Step 4: Simplify right side
    20,371.05x = 220,384,907.71
  5. Step 5: Solve for x
    x = 220,384,907.71/20,371.05
  6. Step 6: Final answer
    x = 10,818.53

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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.