Home / 36,820.57-55,179.36-19,917.08

Finding the Fourth Proportional to 36,820.57, 55,179.36 and 19,917.08

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Solution

The fourth proportional to 36,820.57, 55,179.36 and 19,917.08 is: 29,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,820.57 : 55,179.36 = 19,917.08 : x
  2. Step 2: Convert to fraction form
    36,820.57/55,179.36 = 19,917.08/x
  3. Step 3: Cross multiply
    36,820.57x = 55,179.36 × 19,917.08
  4. Step 4: Simplify right side
    36,820.57x = 1,099,011,727.47
  5. Step 5: Solve for x
    x = 1,099,011,727.47/36,820.57
  6. Step 6: Final answer
    x = 29,847.77

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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.