Home / 30,186.05-45,276.93-7,998.93

Finding the Fourth Proportional to 30,186.05, 45,276.93 and 7,998.93

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Solution

The fourth proportional to 30,186.05, 45,276.93 and 7,998.93 is: 11,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.05 : 45,276.93 = 7,998.93 : x
  2. Step 2: Convert to fraction form
    30,186.05/45,276.93 = 7,998.93/x
  3. Step 3: Cross multiply
    30,186.05x = 45,276.93 × 7,998.93
  4. Step 4: Simplify right side
    30,186.05x = 362,166,993.68
  5. Step 5: Solve for x
    x = 362,166,993.68/30,186.05
  6. Step 6: Final answer
    x = 11,997.83

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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.