Home / 20,007.15-30,013.96-6,156.15

Finding the Fourth Proportional to 20,007.15, 30,013.96 and 6,156.15

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Solution

The fourth proportional to 20,007.15, 30,013.96 and 6,156.15 is: 9,235.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.15 : 30,013.96 = 6,156.15 : x
  2. Step 2: Convert to fraction form
    20,007.15/30,013.96 = 6,156.15/x
  3. Step 3: Cross multiply
    20,007.15x = 30,013.96 × 6,156.15
  4. Step 4: Simplify right side
    20,007.15x = 184,770,439.85
  5. Step 5: Solve for x
    x = 184,770,439.85/20,007.15
  6. Step 6: Final answer
    x = 9,235.22

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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.