Home / 36,195.78-49,949.55-20,280.18

Finding the Fourth Proportional to 36,195.78, 49,949.55 and 20,280.18

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Solution

The fourth proportional to 36,195.78, 49,949.55 and 20,280.18 is: 27,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,195.78 : 49,949.55 = 20,280.18 : x
  2. Step 2: Convert to fraction form
    36,195.78/49,949.55 = 20,280.18/x
  3. Step 3: Cross multiply
    36,195.78x = 49,949.55 × 20,280.18
  4. Step 4: Simplify right side
    36,195.78x = 1,012,985,864.92
  5. Step 5: Solve for x
    x = 1,012,985,864.92/36,195.78
  6. Step 6: Final answer
    x = 27,986.30

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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.