Home / 20,155.24-30,233.13-7,007.86

Finding the Fourth Proportional to 20,155.24, 30,233.13 and 7,007.86

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Solution

The fourth proportional to 20,155.24, 30,233.13 and 7,007.86 is: 10,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.24 : 30,233.13 = 7,007.86 : x
  2. Step 2: Convert to fraction form
    20,155.24/30,233.13 = 7,007.86/x
  3. Step 3: Cross multiply
    20,155.24x = 30,233.13 × 7,007.86
  4. Step 4: Simplify right side
    20,155.24x = 211,869,542.40
  5. Step 5: Solve for x
    x = 211,869,542.40/20,155.24
  6. Step 6: Final answer
    x = 10,511.88

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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.