Home / 39,986.25-55,185.90-23,219.25

Finding the Fourth Proportional to 39,986.25, 55,185.90 and 23,219.25

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Solution

The fourth proportional to 39,986.25, 55,185.90 and 23,219.25 is: 32,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.25 : 55,185.90 = 23,219.25 : x
  2. Step 2: Convert to fraction form
    39,986.25/55,185.90 = 23,219.25/x
  3. Step 3: Cross multiply
    39,986.25x = 55,185.90 × 23,219.25
  4. Step 4: Simplify right side
    39,986.25x = 1,281,375,208.58
  5. Step 5: Solve for x
    x = 1,281,375,208.58/39,986.25
  6. Step 6: Final answer
    x = 32,045.40

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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.