Home / 36,018.68-49,704.74-20,102.78

Finding the Fourth Proportional to 36,018.68, 49,704.74 and 20,102.78

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Solution

The fourth proportional to 36,018.68, 49,704.74 and 20,102.78 is: 27,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.68 : 49,704.74 = 20,102.78 : x
  2. Step 2: Convert to fraction form
    36,018.68/49,704.74 = 20,102.78/x
  3. Step 3: Cross multiply
    36,018.68x = 49,704.74 × 20,102.78
  4. Step 4: Simplify right side
    36,018.68x = 999,203,552.31
  5. Step 5: Solve for x
    x = 999,203,552.31/36,018.68
  6. Step 6: Final answer
    x = 27,741.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.