Home / 35,902.36-49,542.87-19,986.40

Finding the Fourth Proportional to 35,902.36, 49,542.87 and 19,986.40

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Solution

The fourth proportional to 35,902.36, 49,542.87 and 19,986.40 is: 27,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,902.36 : 49,542.87 = 19,986.40 : x
  2. Step 2: Convert to fraction form
    35,902.36/49,542.87 = 19,986.40/x
  3. Step 3: Cross multiply
    35,902.36x = 49,542.87 × 19,986.40
  4. Step 4: Simplify right side
    35,902.36x = 990,183,616.97
  5. Step 5: Solve for x
    x = 990,183,616.97/35,902.36
  6. Step 6: Final answer
    x = 27,579.90

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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.