Home / 35,179.75-48,548.07-20,275.75

Finding the Fourth Proportional to 35,179.75, 48,548.07 and 20,275.75

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Solution

The fourth proportional to 35,179.75, 48,548.07 and 20,275.75 is: 27,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,179.75 : 48,548.07 = 20,275.75 : x
  2. Step 2: Convert to fraction form
    35,179.75/48,548.07 = 20,275.75/x
  3. Step 3: Cross multiply
    35,179.75x = 48,548.07 × 20,275.75
  4. Step 4: Simplify right side
    35,179.75x = 984,348,530.30
  5. Step 5: Solve for x
    x = 984,348,530.30/35,179.75
  6. Step 6: Final answer
    x = 27,980.54

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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.