Home / 20,009.12-30,013.68-6,158

Finding the Fourth Proportional to 20,009.12, 30,013.68 and 6,158

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Solution

The fourth proportional to 20,009.12, 30,013.68 and 6,158 is: 9,237

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.12 : 30,013.68 = 6,158 : x
  2. Step 2: Convert to fraction form
    20,009.12/30,013.68 = 6,158/x
  3. Step 3: Cross multiply
    20,009.12x = 30,013.68 × 6,158
  4. Step 4: Simplify right side
    20,009.12x = 184,824,241.44
  5. Step 5: Solve for x
    x = 184,824,241.44/20,009.12
  6. Step 6: Final answer
    x = 9,237

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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.