Home / 36,775.78-55,162.44-20,143.66

Finding the Fourth Proportional to 36,775.78, 55,162.44 and 20,143.66

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Solution

The fourth proportional to 36,775.78, 55,162.44 and 20,143.66 is: 30,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,775.78 : 55,162.44 = 20,143.66 : x
  2. Step 2: Convert to fraction form
    36,775.78/55,162.44 = 20,143.66/x
  3. Step 3: Cross multiply
    36,775.78x = 55,162.44 × 20,143.66
  4. Step 4: Simplify right side
    36,775.78x = 1,111,173,436.13
  5. Step 5: Solve for x
    x = 1,111,173,436.13/36,775.78
  6. Step 6: Final answer
    x = 30,214.82

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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.