Home / 20,005.24-30,012.18-10,149.88

Finding the Fourth Proportional to 20,005.24, 30,012.18 and 10,149.88

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Solution

The fourth proportional to 20,005.24, 30,012.18 and 10,149.88 is: 15,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.24 : 30,012.18 = 10,149.88 : x
  2. Step 2: Convert to fraction form
    20,005.24/30,012.18 = 10,149.88/x
  3. Step 3: Cross multiply
    20,005.24x = 30,012.18 × 10,149.88
  4. Step 4: Simplify right side
    20,005.24x = 304,620,025.54
  5. Step 5: Solve for x
    x = 304,620,025.54/20,005.24
  6. Step 6: Final answer
    x = 15,227.01

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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.