Home / 35,902.72-49,539.92-19,986.80

Finding the Fourth Proportional to 35,902.72, 49,539.92 and 19,986.80

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Solution

The fourth proportional to 35,902.72, 49,539.92 and 19,986.80 is: 27,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,902.72 : 49,539.92 = 19,986.80 : x
  2. Step 2: Convert to fraction form
    35,902.72/49,539.92 = 19,986.80/x
  3. Step 3: Cross multiply
    35,902.72x = 49,539.92 × 19,986.80
  4. Step 4: Simplify right side
    35,902.72x = 990,144,473.06
  5. Step 5: Solve for x
    x = 990,144,473.06/35,902.72
  6. Step 6: Final answer
    x = 27,578.54

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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.