Home / 36,018.82-49,701.81-20,103.70

Finding the Fourth Proportional to 36,018.82, 49,701.81 and 20,103.70

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Solution

The fourth proportional to 36,018.82, 49,701.81 and 20,103.70 is: 27,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.82 : 49,701.81 = 20,103.70 : x
  2. Step 2: Convert to fraction form
    36,018.82/49,701.81 = 20,103.70/x
  3. Step 3: Cross multiply
    36,018.82x = 49,701.81 × 20,103.70
  4. Step 4: Simplify right side
    36,018.82x = 999,190,277.70
  5. Step 5: Solve for x
    x = 999,190,277.70/36,018.82
  6. Step 6: Final answer
    x = 27,740.78

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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.