Home / 20,009.15-30,016.96-6,158.15

Finding the Fourth Proportional to 20,009.15, 30,016.96 and 6,158.15

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Solution

The fourth proportional to 20,009.15, 30,016.96 and 6,158.15 is: 9,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.15 : 30,016.96 = 6,158.15 : x
  2. Step 2: Convert to fraction form
    20,009.15/30,016.96 = 6,158.15/x
  3. Step 3: Cross multiply
    20,009.15x = 30,016.96 × 6,158.15
  4. Step 4: Simplify right side
    20,009.15x = 184,848,942.22
  5. Step 5: Solve for x
    x = 184,848,942.22/20,009.15
  6. Step 6: Final answer
    x = 9,238.22

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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.