Home / 36,190.55-49,945.01-20,280.12

Finding the Fourth Proportional to 36,190.55, 49,945.01 and 20,280.12

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Solution

The fourth proportional to 36,190.55, 49,945.01 and 20,280.12 is: 27,987.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,190.55 : 49,945.01 = 20,280.12 : x
  2. Step 2: Convert to fraction form
    36,190.55/49,945.01 = 20,280.12/x
  3. Step 3: Cross multiply
    36,190.55x = 49,945.01 × 20,280.12
  4. Step 4: Simplify right side
    36,190.55x = 1,012,890,788.45
  5. Step 5: Solve for x
    x = 1,012,890,788.45/36,190.55
  6. Step 6: Final answer
    x = 27,987.72

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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.