Home / 36,919.93-55,379.89-20,385.09

Finding the Fourth Proportional to 36,919.93, 55,379.89 and 20,385.09

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Solution

The fourth proportional to 36,919.93, 55,379.89 and 20,385.09 is: 30,577.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,919.93 : 55,379.89 = 20,385.09 : x
  2. Step 2: Convert to fraction form
    36,919.93/55,379.89 = 20,385.09/x
  3. Step 3: Cross multiply
    36,919.93x = 55,379.89 × 20,385.09
  4. Step 4: Simplify right side
    36,919.93x = 1,128,924,275.00
  5. Step 5: Solve for x
    x = 1,128,924,275.00/36,919.93
  6. Step 6: Final answer
    x = 30,577.64

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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.